Thin Diameter Research Articles

A flexible and energy independent fluorescence radiation fiber film dosimeter fabricated by electrostatic spinning.

Doping fluorescent substances in polymer matrices has shown promising applications in radiation dose sensing. In this work, quinoline dye based polyvinyl chloride fibrous films with fiber diameters of 123 nm, 540 nm and 864 nm were obtained by electrostatic spinning. The introduction of the fiber film structure makes the fluorescent film dosimeter flexible and lightweight compared to normal solid fluorescent films and further extends the linear range of X-ray detection to 0-350 Gy. Furthermore, the dosimeter shows energy and dose rate independence, and the sensitivity of the dosimeter can be improved by the application of fiber films with thinner diameters. This flexible fiber membrane provides a candidate material for wearable visual dosimeters.

Effect of Concentration and Addition Timing of Bromide Ion on Synthesis of Thin Silver Nanowires (AgNW)

Indium tin oxide (ITO), currently widely used as a transparent conductive material to OLED, solar cells and EC devices, has advantages such as low sheet resistance and high transmittance, but it has defects such as inflexibility, fragility and vacuum process production. Alternative transparent conductive materials are required to replace ITO. Silver nanowires (AgNW) have one of attractive attention because AgNW dispersed films show low sheet resistance and high transparency, and even more excellent flexibility, and solution process production. However, the current AgNW films have higher resistance than that of ITO because diameter of AgNW is sub mm order and poor formation of two-dimensional network of AgNW. Therefore, we aimed to reduce the resistance of AgNW film by thinning diameter of AgNW, which is expected to improve conductivity by increasing number of AgNW while maintaining transparency.Synthesis thinning diameter of AgNW was performed by a polyol reduction method using polyvinylpyrrolidone (PVP) and Br- ion as capping agents, and Ag+ ion was reduced to Ag metal by thermal decomposition of ethylene glycol. As PVP and Br- ion are selectively adsorbed on Ag(100) plane, Ag(111) plane grew, resulting in AgNW production. The reactant solution including NaCl, NaBr, PVP, and AgNO3 in ethylene glycol was heated to 130 ˚C to synthesize AgNW. Br- ion was first added before heating, and the synthesis was carried out at NaBr concentrations ranging from 0 µM to 59.8 µM. As a result, AgNW production was confirmed at the low NaBr concentrations below 53.1 µM, but thin AgNW was not observed. At the high NaBr concentration above 53.1 µM, no AgNW synthesis was observed because Br- ion inhibited the growth of AgNW.Next, we examined the timing of addition of Br- ion at the NaBr concentration of 53.1 µM. When excess Br- ion was added before heating, we supposed that it would inhibit the formation of AgCl nuclei and prevent AgNW growth. When Br- ion was added within 1 hour after the start of heating, the growth of AgNW was inhibited by Br- ion and the synthesis of AgNW could not be confirmed as same as the case of NaBr addition before heating. Addition of Br- ion over 1 hour after the start of heating did not also result in the formation of thin AgNW because the growth of thick AgNW had already been completed. By addition of Br- ion at 1 hour after the start of heating, the formation of thin AgNW was observed.The crude dispersed AgNW solution was diluted in ethanol and then stood for several hours to precipitate thick AgNW. The supernatant solution was pipetted and thin AgNW was precipitated by adding acetone to remove ethylene glycol. The purified thin AgNW were deposited on glass slides by the spray-coating method. Annealing of the deposited substrate at 130 ˚C was used to confirm the decrease in resistance. As a result of resistance measurement, a sheet resistance of 34.6 Ω/sq was achieved at 90% transmittance, and the transparent conductive material was successfully fabricated.

Experimental study on axial compression performance of circular CFST columns considering extreme ambient temperature

To examine CFST short columns’ mechanical properties under extreme temps, 14 specimens were designed, focusing on temp’s impact on materials. Axial compression tests revealed temp-dependent changes: concrete strength surged at low temps but ductility diminished, while steel’s properties stayed stable. Concrete strength gains boosted columns’ strength, enhancing steel-concrete synergy. Shear failure dominated at low temps. Ductility improved with thinner diameters or wetter mixes. Calculations underestimated actual capacity, likely due to temperature neglect in design codes, EC4 most notably. Finally, incorporating the experimental results, the bearing capacity calculation formula of CFST based on the unified theory was modified and accounts for ambient temperature.

Microglia in the hypothalamic paraventricular nucleus sense hemodynamic disturbance and promote sympathetic excitation in hypertension

Hypertension is usually accompanied by elevated sympathetic tonicity, but how sympathetic hyperactivity is triggered is not clear. Recent advances revealed that microglia-centered neuroinflammation contributes to sympathetic excitation in hypertension. In this study, we performed a temporospatial analysis of microglia at both morphological and transcriptomic levels and found that microglia in the hypothalamic paraventricular nucleus (PVN), a sympathetic center, were early responders to hypertensive challenges. Vasculature analyses revealed that the PVN was characterized by high capillary density, thin vessel diameter, and complex vascular topology relative to other brain regions. As such, the PVN was susceptible to the penetration of ATP released from the vasculature in response to hemodynamic disturbance after blood pressure increase. Mechanistically, ATP ligation to microglial P2Y12 receptor was responsible for microglial inflammatory activation and the eventual sympathetic overflow. Together, these findings identified a distinct vasculature pattern rendering vulnerability of PVN pre-sympathetic neurons to hypertension-associated microglia-mediated inflammatory insults.

High Thermal Conductive Liquid Crystal Elastomer Nanofibers.

Liquid crystal elastomers (LCEs), consisting of polymer networks and liquid crystal mesogens, show a reversible phase change under thermal stimuli. However, the kinetic performance is limited by the inherently low thermal conductivity of the polymers. Transforming amorphous bulk into a fiber enhances thermal conductivity through the alignment of polymer chains. Challenges are present due to their rigid networks, while cross-links are crucial for deformation. Here, we employ hydrodynamic alignment to orient the LCE domains assisted by controlled in situ cross-linking and to remarkably reduce the diameter to submicrons. We report that the intrinsic thermal conductivity of LCE fibers at room temperature reaches 1.44 ± 0.32 W/m-K with the sub-100 nm diameter close to the upper limit determined in the quasi-1D regime. Combining the outstanding thermal conductivity and thin diameters, we anticipate these fibers to exhibit a rapid response and high force output in thermomechanical systems. The fabrication method is expected to apply to other cross-linked polymers.

Ficus carica L. (Fig) promotes nerve regeneration in a mouse model of sciatic nerve crush.

Peripheral nerve injuries result in significant loss of motor and sensory function, and the slow rate of nerve regeneration can prolong recovery time. Thus, approaches that promote axonal regeneration are critical to improve the outcomes for patients with peripheral nerve injuries. In this study, we investigated the effects of Ficus carica L. (fig) and Vaccinium macrocarpon Ait. (cranberry), which are rich in phytochemicals with demonstrable and diverse medicinal properties, on nerve regeneration in a mouse model of sciatic nerve crush. Our investigation revealed that fig extract, but not cranberry extract, prevented the decline in muscle weight and nerve conduction velocity induced by nerve crush. The fig extract also mitigated motor function impairment, myelin thinning, and axon diameter reduction, indicating its potential to promote nerve regeneration. Furthermore, the fig extract enhanced macrophage infiltration into the nerve tissue, suggesting that it could ameliorate nerve injury by promoting tissue repair via increased macrophage infiltration. The study provides valuable insights into the potential of the fig extract as a novel agent promoting nerve regeneration. Further investigation into the mechanisms underlying the action of fig extracts is needed to translate these findings into clinical applications for patients with peripheral nerve injuries.

Facile interfacial synthesis of thin AuPd alloy nanowires for plasmon-enhanced selective photocatalytic oxidation of benzyl alcohol

Bimetallic AuPd plasmonic photocatalyst is a promising candidate for catalyzing selective oxidation of aromatic alcohol. However, developing a simple one-step method for the preparation of free-standing AuPd nanostructures with excellent photocatalytic performance remains a huge challenge. Here, a facile liquid–liquid interface route was exploited to one-pot prepare free-standing AuPd alloy nanowires (NWs) under mild conditions. Specifically, Au1Pd1 NWs are grown via oriented attachment at chloroform-water interface and 40 °C with Na2PdCl4 and HAuCl4 as precursors and 1-naphthol as reductant. Au1Pd1 NWs possess many advantages, such as thin diameter (4.0 nm), large aspect ratio, abundant defects and strong Au-Pd electronic interaction. During benzyl alcohol oxidation to benzaldehyde, Au1Pd1 NWs exhibit excellent photocatalytic activity and durability. At 40 min of visible light illumination, 98 % conversion of benzyl alcohol and 100 % selectivity to benzaldehyde are finished. After five cycles, Au1Pd1 NWs still maintain high photocatalytic activity. Compared to pure Au NWs, alloying Pd with Au in Au1Pd1 NWs dramatically enhances photocatalytic activity. The results indicate that the generated abundant •O2– under illumination play an important role in significantly improving benzyl alcohol oxidation to benzaldehyde.

Enhanced properties of Nafion nanofibrous proton exchange membranes by altering the electrospinning solvents

Abstract Nanofibrous proton exchange membranes (PEMs) play an important role in improving the performance of the fuel cells. In this paper, two kinds of Nafion nanofibrous PEMs, Nafion-E/W and Nafion-DMF, were fabricated respectively by using ethanol/water (E/W) and N, N-dimethylformamide (DMF) as the solvent and their properties, such as the morphologies, water uptake, area swelling, ion exchange capabilities, conductivities, and mechanical properties were examined. Nafion-E/W nanofibers showed a thick diameter of 6,089 nm and Nafion-DMF nanofibers a thin diameter of 410 nm. Then the two Nafion nanofibers were annealed to provide the PEMs. Compared with Nafion 117 membranes and Nafion-DMF PEMs, Nafion-E/W PEMs showed the greatest water uptake and area swelling of respectively 59.75 % and 30.31 % and the conductivity increased to 0.1405 S/cm, more than twice as much as Nafion 117 membranes, but the broken stress decreased to 5.49 MPa, nearly half of Nafion 117 membranes. Nafion-DMF PEMs showed the lowest water uptake, area swelling, and conductivity of 22.67 %, 10.75 %, and 0.0410 S/cm, and the broken stress reached 14.20 MPa, greater than 11.0 MPa of Nafion 117 membranes. The obtained experimental results are instructive to improve the properties of Nafion PEMs.

Coverage-dependent adsorption of n-hexane and isopropanol on silica: A density-functional study

This study delves into the adsorption behavior of both polar and non-polar molecules on silica surfaces, spanning a range from low coverage to full adsorption scenarios. Our results reveal that isopropanol exhibits a self-competitive adsorption mechanism on the surface. However, due to its thermodynamic stability, we anticipate fully covered pores under experimental conditions. In contrast, n-hexane demonstrates a substantial interaction with the hydrophilic substrate, displaying an enhanced adsorption effect whereby the adsorption gets stronger with an increasing number of molecules adhering to the pore’s surface. As a consequence, we predict a complete coverage of the pores under experimental conditions, accompanied by a discernible reduction in the mobility of these attached molecules. This observation carries significance, as alkanes are typically employed as probing molecules for measuring the geometric tortuosity of silica pores, assuming a reflective surface. Caution is advised, particularly for pores with thin diameters, in the order of a few molecular sizes.

PVN predisposes microglia to be susceptible to hemodynamic signals and promote sympathetic excitation in hypertension

Hypertension is usually accompanied with an elevated sympathetic tonicity, but how sympathetic hyperactivity is triggered is not fully understood. Recent advances reveal that microglia-centered neuroinflammation contributes to sympathetic excitation in hypertension. In this study, we performed a temporospatial analysis of microglia at both morphological and transcriptomic levels, and found that microglia in the hypothalamic paraventricular nucleus (PVN) were early responders to hypertensive challenges. PVN is the central hub for maintaining cardiovascular function via regulation of fluid balance and sympathetic outflow. Comprehensive vasculature analyses unveiled that PVN was characterized by high capillary density, thin vessel diameter, and complex vascular topology among brain regions. As such, PVN is susceptible to the penetration of ATP released from the vasculature in response to hemodynamic disturbance after blood pressure increase. ATP ligation to microglial P2Y12 receptor is responsible for the microglial accumulation and activation in the PVN. Both pharmacological blockade and genetic ablation of microglial P2Y12 could substantially restrain blood pressure increase under hypertensive challenge. Together, these findings disclose that a unique vasculature pattern results in the vulnerability of PVN pre-sympathetic neurons to hypertension-associated inflammatory insults, which is mediated by microglia. NSFC82170441. This is the full abstract presented at the American Physiology Summit 2024 meeting and is only available in HTML format. There are no additional versions or additional content available for this abstract. Physiology was not involved in the peer review process.

Diffusive and ballistic transport in thin InSb nanowire devices using a few-layer-graphene-AlO x gate

Quantum devices based on InSb nanowires (NWs) are a prime candidate system for realizing and exploring topologically-protected quantum states and for electrically-controlled spin-based qubits. The influence of disorder on achieving reliable quantum transport regimes has been studied theoretically, highlighting the importance of optimizing both growth and nanofabrication. In this work, we consider both aspects. We developed InSb NW with thin diameters, as well as a novel gating approach, involving few-layer graphene and atomic layer deposition-grown AlO x . Low-temperature electronic transport measurements of these devices reveal conductance plateaus and Fabry–Pérot interference, evidencing phase-coherent transport in the regime of few quantum modes. The approaches developed in this work could help mitigate the role of material and fabrication-induced disorder in semiconductor-based quantum devices.

Coral geometry and why it matters.

Clonal organisms like reef building corals exhibit a wide variety of colony morphologies and geometric shapes which can have many physiological and ecological implications. Colony geometry can dictate the relationship between dimensions of volume, surface area, and length, and their associated growth parameters. For calcifying organisms, there is the added dimension of two distinct components of growth, biomass production and calcification. For reef building coral, basic geometric shapes can be used to model the inherent mathematical relationships between various growth parameters and how colony geometry determines which relationships are size-dependent or size-independent. Coral linear extension rates have traditionally been assumed to be size-independent. However, even with a constant calcification rate, extension rates can vary as a function of colony size by virtue of its geometry. Whether the ratio between mass and surface area remains constant or changes with colony size is the determining factor. For some geometric shapes, the coupling of biomass production (proportional to surface area productivity) and calcification (proportional to volume) can cause one aspect of growth to geometrically constrain the other. The nature of this relationship contributes to a species' life history strategy and has important ecological implications. At one extreme, thin diameter branching corals can maximize growth in surface area and resource acquisition potential, but this geometry requires high biomass production to cover the fast growth in surface area. At the other extreme, growth in large, hemispheroidal corals can be constrained by calcification. These corals grow surface area relatively slowly, thereby retaining a surplus capacity for biomass production which can be allocated towards other anabolic processes. For hemispheroidal corals, the rate of surface area growth rapidly decreases as colony size increases. This ontogenetic relationship underlies the success of microfragmentation used to accelerate restoration of coral cover. However, ontogenetic changes in surface area productivity only applies to certain coral geometries where surface area to volume ratios decrease with colony size.

Shape detection of thin diameter flexible sensors with non-uniform gratings

Flexible intelligent medical device shape feedback has a very important application prospect in intelligent structure detection. Due to the error accumulation effect, the distribution of gratings is also an important factor affecting the reconstruction error of shape sensors. A grating positions optimization method based on the fusion of adaptive mutation particle swarm optimization algorithm and shape reconstruction algorithm is proposed in the paper. The curves with 10 measurement points arranged at a sensing length of 810 mm and 4 measurement points arranged at a sensing length of 200 mm are simulated and calculated. After multiple optimization training, the sparse optimal distribution of gratings with the smallest shape error is obtained. Package sensors with uniform and non-uniform distribution of grating points based on the obtained point positions, and conduct planar shape reconstruction experiments. After multiple shape reconstruction experiments, the shape errors of the sensor shape reconstruction endpoint for uniform gratings are 2.76% and 2.94%, respectively, and the reconstruction accuracy for non-uniform gratings is 1.94% and 2.71%. The optimized shape sensor has good performance, thus proving the effectiveness of the fiber grating sensing grid point optimization method in flexible medical device deformation monitoring.

Design consideration on integration of mechanical intravascular ultrasound and electromagnetic tracking sensor for intravascular reconstruction

PurposeConsidering vessel deformation, endovascular navigation requires intraoperative geometric information. Mechanical intravascular ultrasound (IVUS) with an electromagnetic (EM) sensor can be used to reconstruct blood vessels with thin diameter. However, the integration design should be evaluated based on the factors affecting the reconstruction error.MethodsThe interference between the mechanical IVUS and EM sensor was measured in different relative positions. Two designs of the integrated catheter were evaluated by measuring the reconstruction errors using a rigid vascular phantom.ResultsWhen the distance from the EM sensor to the field generator was 75 mm, the interference from mechanical IVUS to an EM sensor was negligible, with position and rotation errors less than 0.1 mm and 0.6°, respectively. The reconstructed vessel model for proximal IVUS transducer had a smooth surface but an inaccurate shape at large curvature of the vascular phantom. When the distance to the field generator was 175 mm, the error increased significantly.ConclusionPlacing the IVUS transducer on the proximal side of the EM sensor is superior in terms of interference reduction but inferior in terms of mechanical stability compared to a distal transducer. The distal side is preferred due to better mechanical stability during catheter manipulation at larger curvature. With this configuration, surface reconstruction errors less than 1.7 mm (with RMS 0.57 mm) were achieved when the distance to the field generator was less than 175 mm.

Enhanced wound healing of ciprofloxacin incorporated PVA/alginate/PAA electrospun nanofibers with antibacterial effects and controlled drug release

Novel polyvinyl alcohol (PVA), alginate (Alg), and polyacrylic acid (PAA) based nanofiber matrix incorporated with ciprofloxacin (Cip) was manufactured via electrospinning. The functional matrix could accelerate wound healing and also prevent infections by a controlled release of ciprofloxacin. Beads were observed in PVA-Cip which disappeared with the addition of Alg and PAA resulting in the thinnest diameter (141 ± 53 nm) and the most uniform surface. The polymers underwent both intermolecular hydrogen and ester bonds via abundant carboxyl and hydroxyl groups trapping ciprofloxacin inside the matrix. The tensile properties of PVA-Alg-PAA-Cip were significantly higher than the other two samples because of the complex intermolecular bonds. Although the glass transition temperatures (Tg) of the samples were similar, the melting temperature (Tm) of PVA-Alg-PAA-Cip was the highest at 339 oC due to stronger intermolecular bonding. Because of the absorbable nature of alginate, PVA-Alg-Cip swelled the most (600%) in different pH conditions. A controlled release was achieved with only 40% release of ciprofloxacin from PVA-Alg-PAA-Cip compared to 70% in the case of PVA-Cip in neutral pH after 24 h. Because of this slow release, all the samples were able to kill both S. aureus and E. coli for at least 7 days with just a single dose of the drug and PVA-Alg-PAA-Cip demonstrated higher bactericidal activity than other samples. The functional polymer matrix could induce faster healing in a murine excisional wound model, unlike the control group. Ciprofloxacin prevented bacterial infection facilitating faster re-epithelialization as observed in hematoxylin and eosin (H&E) and Masson’s trichrome (MT) staining.

Thin diameter optical displacement sensor for grasping force sensing of surgical robot

AbstractThe purpose of this study is to realize a grasp force measurement of forceps for robotic surgery systems. Generally, surgical robot forceps is actuated by traction wire, and we have suggested a newly force sensing system by measuring the wire expansion utilizing micro displacement sensors. For measuring the elongation of the wire, the white‐light interference principle has been utilized on sensor system, and the sensor consists of a tip‐tilted optical fiber, a Fizeau interferometer and a sensor holder. In this report, displacement sensor has been successfully fabricated and mounted onto the wire to measure the elongation of the wire under tension and discussed the experimental results.

Highly surface-selective nitration of cellulose nanofibers under mildly acidic reaction conditions

Cellulose nitrate (CN) is used in numerous industrial materials, such as propellants, lacquers, and plastics, exploiting its highly flammable, hydrophobic, and plastic characters. The downsizing of cellulose nitrate fibers may enhance their properties. Although a direct nitration of cellulose nanofiber (CNF) is a prospective method for preparing nanosized CN materials, it is difficult because of the susceptibility of CNF to acids. In the previous study, we prepared nitrated cellulose nanofibers (NCNFs) using never-dried CNFs and relatively dilute H2SO4, obtaining a high yield and degree of substitution. In this study, we describe a novel highly surface-selective nitration method using dried CNFs. To prevent the acid hydrolysis of the CNFs, mildly acidic conditions (acetic acid/acetic anhydride/HNO3) were used instead of the conventional mixed-acid systems. Solid- and gel-state NMR studies revealed that the original crystalline structure of the produced NCNF core was retained, even after nitration, whereas the cellulose molecules on the NCNF surface were completely converted to cellulose pernitrates. The NCNFs exhibited morphologies comprising thin nanofiber diameters of approximately 10–50 nm with high specific surface areas of approximately 260 m2 g–1. Thus, unique core–shell NCNFs were prepared, potentially leading to the development of CNF derivatives with novel applications and functions.Graphical abstract

Abstract P412: Microglia Via P2y 12 Transmit Hemodynamic Signal To Promote Sympathetic Activation In Hypertension

Hypertension is characterized by elevated sympathetic tonicity, but how sympathetic hyperactivity is triggered is not fully understood. Recent studies reveal that microglia highly involve in the regulation of sympathetic neuronal activity in the hypothalamic paraventricular nucleus (PVN). In this study, we performed a temporospatial analysis of microglia at both morphological and transcriptomic levels, and found that microglia in the PVN were the earliest responders to hypertensive challenge. Comprehensive vasculature analysis unveiled that PVN was characterized by high capillary density, thin vessel diameter, and complex vascular topology compared to other brain regions. PVN is susceptible to the penetration of ATP derived from the vasculature in response to hemodynamic disturbance upon pressor challenge. Furthermore, either pharmacological blockade or genetic ablation of microglia P2Y12 could substantially restrain pressor response under hypertensive stimulation Together, these findings suggest that a unique vasculature pattern endows PVN with susceptibility to hypertension-associated hemodynamic insults, which is mediated by microglia.

Artificial SiNz:H Synapse Crossbar Arrays with Gradual Conductive Pathway for High-Accuracy Neuromorphic Computing.

Inspired by its highly efficient capability to deal with big data, the brain-like computational system has attracted a great amount of attention for its ability to outperform the von Neumann computation paradigm. As the core of the neuromorphic computing chip, an artificial synapse based on the memristor, with a high accuracy in processing images, is highly desired. We report, for the first time, that artificial synapse arrays with a high accuracy in image recognition can be obtained through the fabrication of a SiNz:H memristor with a gradient Si/N ratio. The training accuracy of SiNz:H synapse arrays for image learning can reach 93.65%. The temperature-dependent I-V characteristic reveals that the gradual Si dangling bond pathway makes the main contribution towards improving the linearity of the tunable conductance. The thinner diameter and fixed disconnection point in the gradual pathway are of benefit in enhancing the accuracy of visual identification. The artificial SiNz:H synapse arrays display stable and uniform biological functions, such as the short-term biosynaptic functions, including spike-duration-dependent plasticity, spike-number-dependent plasticity, and paired-pulse facilitation, as well as the long-term ones, such as long-term potentiation, long-term depression, and spike-time-dependent plasticity. The highly efficient visual learning capability of the artificial SiNz:H synapse with a gradual conductive pathway for neuromorphic systems hold great application potential in the age of artificial intelligence (AI).

Three-phase contact formation between an air bubble and solid surfaces with different hydrophobicity degrees in liquid

Interactions between gas bubbles and solid particles are crucial in numerous industrial processes, including froth flotation, in which particle-bubble attachment plays a vital role. The process efficiency depends on differences in the surface wettability (i.e., hydrophobicity, expressed by the contact angle) of separated particles. This study aimed to investigate the influence of surface hydrophobicity and zeta potential on the formation of a three-phase contact (TPC) between a single air bubble and planar glass surfaces. Different degrees of hydrophobicity were achieved by esterification with a range of alcohols and time. The interaction between the bubble and surface was monitored using a high-speed camera with a time resolution of 1 ms, allowing for measurements of the time of thin liquid film drainage, time and diameter of TPC formation, TPC line expansion velocity, and dynamic contact angles. The observations suggest that TPC formation occurs when the solid surface has a sufficient degree of hydrophobicity (critical contact angle) and is dependent on the differences in zeta potential values between the air bubble and the solid surface in water. When both surfaces are negatively charged, the limiting value of the water contact angle is ca. 35°, whereas for oppositely charged surfaces, the value slightly decreases to ca. 31°. The results show that increasing surface hydrophobicity enhances the bubble adhesion effectiveness by increasing both the propagation velocity of the TPC perimeter and its size (measured by the diameter of the formed TPC). The article also discusses the mechanism of bubble-solid adhesion in relation to the hydrophobicity and zeta potential of the solid surface based on the obtained results.