{"id":8427,"date":"2026-06-14T21:12:11","date_gmt":"2026-06-14T13:12:11","guid":{"rendered":"https:\/\/www.sinosonics.com\/uncategorized\/ultrasonic-nanoparticle-dispersion-deagglomeration\/"},"modified":"2026-06-15T07:56:29","modified_gmt":"2026-06-14T23:56:29","slug":"ultrasonic-nanoparticle-dispersion-deagglomeration","status":"publish","type":"post","link":"https:\/\/www.sinosonics.com\/es\/ultrasonic-homogenizer\/ultrasonic-nanoparticle-dispersion-deagglomeration\/","title":{"rendered":"Ultrasonic Nanoparticle Dispersion &#038; Deagglomeration: Complete Process Guide"},"content":{"rendered":"<style>\n.ss-rich table{width:100%;border-collapse:collapse;margin:22px 0;font-size:15px;line-height:1.5;box-shadow:0 1px 3px rgba(0,0,0,.05);}\n.ss-rich th{background:#1f3a5f;color:#fff;text-align:left;padding:11px 15px;border:1px solid #2a4a73;font-weight:600;}\n.ss-rich td{padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;}\n.ss-rich tbody tr:nth-child(even) td{background:#f6f8fa;}\n.ss-rich tbody tr:hover td{background:#eef3f8;}\n@media(max-width:600px){.ss-rich table{display:block;overflow-x:auto;-webkit-overflow-scrolling:touch;}}\n.ss-rich .ss-cta a{transition:transform .15s ease,box-shadow .15s ease}.ss-rich .ss-cta a:hover{transform:translateY(-2px);box-shadow:0 5px 14px rgba(0,0,0,.18)}<\/style>\n<div class=\"ss-rich\">\n<p>Nanoparticles almost never arrive in the form they are needed. Graphene sheets stack. Carbon nanotubes (CNTs) bundle. Metal oxide particles aggregate during synthesis, drying, or storage. The surface-area advantage that makes nanomaterials attractive \u2014 the reason a gram of graphene provides hundreds of square meters of active surface \u2014 is nullified the moment those particles clump together into micron-scale agglomerates. Re-dispersing them is not optional; it is a prerequisite for every downstream application from battery electrode manufacturing to nanocomposite research to biomedical contrast agents.<\/p>\n<p>Ultrasonic deagglomeration is the dominant laboratory and industrial method for breaking up nanoparticle aggregates and creating stable dispersions. This guide explains the mechanism, the parameters that govern results, protocols for common nanomaterial classes, and how to select the right ultrasonic homogenizer for the task.<\/p>\n<div class=\"ss-takeaways\" style=\"border:1px solid #cfe0d8;background:#eef7f1;border-radius:8px;padding:16px 20px;margin:24px 0;\">\n<p style=\"margin:0 0 10px;font-weight:700;color:#1e6b46;font-size:16px;\">Key takeaways<\/p>\n<ul style=\"margin:0;padding-left:20px;\">\n<li style=\"margin:4px 0;\">Nanoparticles agglomerate from van der Waals forces, destroying the surface-area advantage that makes them useful.<\/li>\n<li style=\"margin:4px 0;\">Specify total energy dose in J\/mL, not time, for reproducible dispersion across batches and instruments.<\/li>\n<li style=\"margin:4px 0;\">Energy ranges: 50\u2013200 J\/mL loose agglomerates, 200\u20131000 J\/mL most lab work, 1000\u20135000 J\/mL graphene and CNTs.<\/li>\n<li style=\"margin:4px 0;\">Amplitude scales by material: 20\u201340% fragile particles, 40\u201360% metal oxides, 60\u201380% carbon nanotubes and graphene.<\/li>\n<li style=\"margin:4px 0;\">Targets for quality: DLS polydispersity below 0.2 and zeta potential above &#177;30 mV.<\/li>\n<\/ul>\n<\/div>\n<h2>Why Nanoparticles Agglomerate \u2014 and Why Ultrasound Works<\/h2>\n<p>At the nanoscale, van der Waals attractive forces between particles become very large relative to the particles&#8217; inertia. A 50 nm TiO\u2082 particle has such a high surface-to-mass ratio that electrostatic and van der Waals forces easily overcome gravity \u2014 the particles are effectively &#8220;sticky&#8221; and form agglomerates spontaneously unless surface charge or steric repulsion keeps them apart.<\/p>\n<p>Conventional mixing methods (magnetic stirring, high-speed rotor-stator) generate shear forces at the macro scale \u2014 insufficient to penetrate and break apart nanoscale agglomerate clusters where cohesive forces operate over distances of nanometers. Ultrasonic cavitation is different:<\/p>\n<ul>\n<li>Bubble collapse generates <strong>localized pressure pulses of hundreds of bar<\/strong> at the microscale<\/li>\n<li><strong>Liquid microjets<\/strong> formed by asymmetric collapse directly impact agglomerate surfaces at velocities approaching 100 m\/s<\/li>\n<li><strong>Acoustic streaming<\/strong> drives turbulent micro-mixing at the particle scale, continuously transporting de-aggregated particles away from the high-shear zone and bringing new agglomerates in<\/li>\n<\/ul>\n<p>The practical result is that agglomerates with cohesive forces that shear mixers cannot overcome are broken apart efficiently, and the resulting primary particles are suspended in a state that surfactants and stabilizers can maintain.<\/p>\n<h2>Critical Process Parameters<\/h2>\n<h3>Specific Energy Input (J\/mL)<\/h3>\n<div class=\"ss-note\" style=\"border-left:4px solid #2a7ae2;background:#eef4fc;padding:12px 16px;margin:18px 0;border-radius:0 6px 6px 0;\">\n<p style=\"margin:0;\"><strong style=\"color:#2a7ae2;\">Tip:<\/strong> Set protocols by cumulative joules per mL shown in real-time, since amplitude, duty cycle, probe size, and volume all change effective energy.<\/p>\n<\/div>\n<p>The most reliable scaling parameter for nanoparticle dispersion is <strong>specific energy<\/strong> \u2014 the total acoustic energy delivered per unit volume of dispersion. It captures both amplitude, processing time, pulse duty cycle, and probe efficiency in a single number.<\/p>\n<ul>\n<li><strong>Low energy (50\u2013200 J\/mL):<\/strong> Suitable for loose soft agglomerates (e.g., pre-dispersed metal oxide in water, low-concentration graphene)<\/li>\n<li><strong>Medium energy (200\u20131000 J\/mL):<\/strong> Most laboratory nanoparticle dispersions; CNT bundles, ZnO, TiO\u2082, SiO\u2082 at 0.1\u20135% loading<\/li>\n<li><strong>High energy (1000\u20135000 J\/mL):<\/strong> Graphene delamination from graphite flakes, highly entangled MWCNTs, high-viscosity electrode slurries<\/li>\n<\/ul>\n<p>SONOBIO Split-Type instruments display total energy (Joules) in real time, enabling reproducible protocols defined by energy dose rather than time.<\/p>\n<h3>Amplitude (%)<\/h3>\n<p>Higher amplitude = more intense cavitation = more effective deagglomeration, but also more probe erosion and greater risk of over-processing fragile particles. For most nanomaterials:<\/p>\n<ul>\n<li><strong>20\u201340%:<\/strong> Fragile biological nanoparticles, gold nanoparticles, quantum dots<\/li>\n<li><strong>40\u201360%:<\/strong> Metal oxides (TiO\u2082, ZnO, Fe\u2083O\u2084, SiO\u2082), ceramic particles<\/li>\n<li><strong>60\u201380%:<\/strong> Carbon nanotubes, graphene, boron nitride, hard agglomerates in high-viscosity matrices<\/li>\n<\/ul>\n<h3>Pulse Mode<\/h3>\n<div class=\"ss-note\" style=\"border-left:4px solid #5a6b7b;background:#f1f4f7;padding:12px 16px;margin:18px 0;border-radius:0 6px 6px 0;\">\n<p style=\"margin:0;\"><strong style=\"color:#5a6b7b;\">Note:<\/strong> Monitor temperature during sonication; most nanoparticles stay stable to 60\u201380&#176;C but polymer-coated and biofunctionalized particles are more sensitive.<\/p>\n<\/div>\n<p>Continuous mode at high amplitude heats the sample rapidly. For most nanoparticle dispersions:<\/p>\n<ul>\n<li><strong>5 s on \/ 5 s off<\/strong> is a safe starting point<\/li>\n<li>Viscous slurries may benefit from shorter on-periods (3 s on \/ 7 s off) to allow thermal equilibration<\/li>\n<li>Temperature monitoring is essential; most nanoparticles are stable up to 60\u201380 \u00b0C, but polymer-coated particles and biofunctionalized nanoparticles may be more sensitive<\/li>\n<\/ul>\n<h3>Surfactant \/ Dispersant Selection<\/h3>\n<p>Ultrasonic energy alone disperses nanoparticles during processing but does not prevent re-agglomeration once sonication stops. A surfactant or dispersant must be present to stabilize the dispersed state:<\/p>\n<table style=\"width:100%;border-collapse:collapse;margin:22px 0;font-size:15px;line-height:1.5;\">\n<tbody>\n<tr>\n<th style=\"background:#1f3a5f;color:#fff;text-align:left;padding:11px 15px;border:1px solid #2a4a73;font-weight:600;\">Nanomaterial<\/th>\n<th style=\"background:#1f3a5f;color:#fff;text-align:left;padding:11px 15px;border:1px solid #2a4a73;font-weight:600;\">Common Dispersants<\/th>\n<\/tr>\n<tr>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Graphene \/ rGO<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">NMP, pyrene-PEG, sodium cholate, Triton X-100<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">CNT (SWCNT \/ MWCNT)<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">SDS, sodium cholate, carboxymethyl cellulose (CMC), Triton X-100<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">TiO\u2082, ZnO, Al\u2082O\u2083<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Dispersant BYK-180, polyacrylic acid (PAA), citric acid<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Fe\u2083O\u2084 (magnetic)<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Oleic acid, CTAB, PEG-silane<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Battery cathode (NCM, LFP)<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">NMP + PVDF binder (standard electrode formulation)<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Gold \/ silver nanoparticles<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">PVP, PEG, citrate<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>The dispersant should be added to the solvent before the nanoparticle powder is introduced, and the slurry briefly mixed before sonication begins.<\/p>\n<h3>Probe Diameter and Vessel Geometry<\/h3>\n<table style=\"width:100%;border-collapse:collapse;margin:22px 0;font-size:15px;line-height:1.5;\">\n<tbody>\n<tr>\n<th style=\"background:#1f3a5f;color:#fff;text-align:left;padding:11px 15px;border:1px solid #2a4a73;font-weight:600;\">Volume<\/th>\n<th style=\"background:#1f3a5f;color:#fff;text-align:left;padding:11px 15px;border:1px solid #2a4a73;font-weight:600;\">Probe Diameter<\/th>\n<th style=\"background:#1f3a5f;color:#fff;text-align:left;padding:11px 15px;border:1px solid #2a4a73;font-weight:600;\">Notes<\/th>\n<\/tr>\n<tr>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">0.5\u20135 mL<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">\u03a63\u20136 mm (microtip)<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Highest intensity; use for precious nanomaterials<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">5\u2013100 mL<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">\u03a69\u201312.7 mm<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Standard lab probe; most dispersion work<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">100 mL\u20132 L<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">\u03a620 mm<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Medium batch; electrode slurry at lab scale<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">2\u20135 L<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">\u03a625\u201330 mm<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Large batch; pilot-scale slurry<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">5\u201350 L<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">\u03a640\u201350 mm<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Industrial batch; 2000 W SONOBIO Industrial<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Position the probe tip approximately 1\u20132 cm below the liquid surface for best circulation.<\/p>\n<h2>Protocols for Common Nanomaterials<\/h2>\n<h3>Protocol 1: Graphene (Exfoliated or rGO) Dispersion in Water or NMP<\/h3>\n<p><strong>Goal:<\/strong> Stable single\/few-layer graphene suspension at 0.1\u20135 mg\/mL<\/p>\n<p><strong>Equipment:<\/strong> SONOBIO Split-Type, \u03a612.7 mm probe; water bath temperature control<\/p>\n<ol>\n<li>Weigh graphene powder into vessel; add solvent containing dispersant (e.g., 0.5% sodium cholate in DI water, or NMP for non-aqueous)<\/li>\n<li>Pre-mix by magnetic stirring 5 minutes<\/li>\n<li>Amplitude: 60%; pulse 5 s on \/ 5 s off; ice bath<\/li>\n<li>Target energy: 500\u20132000 J\/mL (monitor J readout on 7&#8243; touchscreen)<\/li>\n<li>Allow to cool; characterize by DLS (Z-average, PDI) and Raman (D\/G ratio for defect assessment)<\/li>\n<li>Centrifuge at 500\u20131000 \u00d7 g for 10 minutes to remove any un-exfoliated graphite; collect supernatant<\/li>\n<\/ol>\n<div class=\"ss-note\" style=\"border-left:4px solid #5a6b7b;background:#f1f4f7;padding:12px 16px;margin:18px 0;border-radius:0 6px 6px 0;\">\n<p><strong>Note:<\/strong> Raman D\/G ratio monitoring is important \u2014 extended high-amplitude sonication introduces basal plane defects in graphene. Balance dispersion quality vs. structural integrity.<\/p>\n<\/div>\n<h3>Protocol 2: Multi-Wall Carbon Nanotube (MWCNT) Dispersion<\/h3>\n<p><strong>Goal:<\/strong> Individualized MWCNTs in aqueous or polymer solution for composite fabrication<\/p>\n<p><strong>Equipment:<\/strong> SONOBIO Split-Type, \u03a612.7\u201320 mm probe<\/p>\n<ol>\n<li>Disperse MWCNTs at 0.1\u20132% w\/v in surfactant solution (1% SDS or sodium cholate in DI water; or CMC 0.5%)<\/li>\n<li>Pre-stir 15 minutes<\/li>\n<li>Amplitude: 65\u201375%; pulse 5 s on \/ 5 s off; maintain T &lt; 40 \u00b0C with ice bath<\/li>\n<li>Process for 800\u20131500 J\/mL total energy<\/li>\n<li>Optional: centrifuge at 5000 \u00d7 g to remove large bundles; collect supernatant<\/li>\n<li>Characterize by UV-Vis (absorbance at 730 nm for SWCNT concentration), DLS, TEM<\/li>\n<\/ol>\n<h3>Protocol 3: TiO\u2082 or ZnO Nanoparticle Dispersion for Coatings \/ Photocatalysis<\/h3>\n<p><strong>Goal:<\/strong> Stable suspension of metal oxide nanoparticles (20\u2013100 nm primary size) at 1\u201320% loading<\/p>\n<p><strong>Equipment:<\/strong> SONOBIO Integrated-Type or Split-Type, \u03a612.7\u201320 mm probe<\/p>\n<ol>\n<li>Add dispersant to vehicle first (e.g., BYK-180 at 1\u20133% w\/w of oxide in water or ethanol)<\/li>\n<li>Slowly add nanoparticle powder under stirring; pre-mix 5 minutes<\/li>\n<li>Amplitude: 50%; pulse 5 s on \/ 5 s off<\/li>\n<li>Process for 200\u2013500 J\/mL<\/li>\n<li>Monitor particle size by DLS; target &lt; 3\u00d7 primary particle size (indicating small aggregates)<\/li>\n<li>If viscosity is high (&gt;100 cP), increase amplitude to 60\u201370% and reduce batch size<\/li>\n<\/ol>\n<h3>Protocol 4: Battery Electrode Slurry (LFP \/ NCM Cathode)<\/h3>\n<p><strong>Goal:<\/strong> Homogeneous dispersion of active material, carbon black (Super P), and PVDF binder in NMP for coating<\/p>\n<p><strong>Equipment:<\/strong> SONOBIO Split-Type (\u03a620\u201330 mm) for lab scale; SONOBIO Industrial for production<\/p>\n<ol>\n<li>Dissolve PVDF in NMP first (12 hours, magnetic stirring)<\/li>\n<li>Add carbon black; mix 30 minutes<\/li>\n<li>Add LFP or NCM powder; mix 1 hour<\/li>\n<li>Sonicate: amplitude 55\u201365%; pulse 5 s on \/ 5 s off; maintain T &lt; 50 \u00b0C<\/li>\n<li>Energy input: 300\u2013800 J\/mL<\/li>\n<li>Characterize by tape-casting a thin film onto aluminum foil; examine adhesion and surface quality<\/li>\n<li>Check impedance spectroscopy after cell assembly to confirm electrical contact improvement vs. stirring-only control<\/li>\n<\/ol>\n<h3>Protocol 5: Fe\u2083O\u2084 Magnetic Nanoparticles in Biological Buffer<\/h3>\n<p><strong>Goal:<\/strong> Stable suspension of superparamagnetic iron oxide (SPION) for biomedical or water treatment use<\/p>\n<p><strong>Equipment:<\/strong> SONOBIO Non-Contact (8 sealed tubes) or SONOBIO Integrated-Type with \u03a66 mm microtip<\/p>\n<ol>\n<li>Suspend Fe\u2083O\u2084 in PBS or DI water containing PEG-silane or citric acid stabilizer<\/li>\n<li>Amplitude: 30\u201340% (lower to preserve surface coating)<\/li>\n<li>Pulse: 3 s on \/ 7 s off; ice bath<\/li>\n<li>Energy: 100\u2013300 J\/mL<\/li>\n<li>Verify: DLS, zeta potential (target |\u03b6| &gt; 30 mV for electrostatic stabilization), TEM<\/li>\n<\/ol>\n<h2>Industrial Scale: Battery Slurry and Graphene Ink Production<\/h2>\n<p>At production scale, nanoparticle dispersion by probe sonication requires reconfiguration:<\/p>\n<ul>\n<li><strong>Large batch:<\/strong> SONOBIO Industrial 2000 W with \u03a640 mm titanium probe handles up to 50 L per batch. The 24\u00d77 duty rating means the unit can run continuous production shifts without cooling downtime.<\/li>\n<li><strong>Continuous inline processing:<\/strong> The SONOBIO Industrial equipped with an <strong>inline flow cell<\/strong> pumps slurry through a sonication chamber at a controlled flow rate. This is the configuration of choice for graphene ink production, conductive slurry manufacturing, and any process where batch-to-batch consistency must be rigorously controlled. Each unit volume receives the same energy dose regardless of total production volume.<\/li>\n<li><strong>High-viscosity slurries:<\/strong> SONOBIO Industrial&#8217;s \u03a640 or \u03a650 mm probe operates effectively in slurries up to several thousand centipoise \u2014 typical for concentrated battery electrode formulations that would cavitate poorly with smaller probes.<\/li>\n<\/ul>\n<p>For reference: a SONOBIO Industrial unit has been used to disperse graphene in NMP (50 L, 1% loading) in under 45 minutes at 2000 W.<\/p>\n<h2>Monitoring Dispersion Quality<\/h2>\n<table style=\"width:100%;border-collapse:collapse;margin:22px 0;font-size:15px;line-height:1.5;\">\n<tbody>\n<tr>\n<th style=\"background:#1f3a5f;color:#fff;text-align:left;padding:11px 15px;border:1px solid #2a4a73;font-weight:600;\">Technique<\/th>\n<th style=\"background:#1f3a5f;color:#fff;text-align:left;padding:11px 15px;border:1px solid #2a4a73;font-weight:600;\">What It Measures<\/th>\n<th style=\"background:#1f3a5f;color:#fff;text-align:left;padding:11px 15px;border:1px solid #2a4a73;font-weight:600;\">Target<\/th>\n<\/tr>\n<tr>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Dynamic Light Scattering (DLS)<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Hydrodynamic diameter, PDI<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">&lt; 3\u00d7 primary particle size; PDI &lt; 0.2<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Zeta Potential<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Surface charge (electrostatic stability)<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\"><\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">\u03b6<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">&gt; 30 mV<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">UV-Vis spectroscopy<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Concentration of CNT\/graphene in supernatant<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Follows Beer-Lambert for known extinction coefficients<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">TEM \/ SEM<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Visual confirmation of individualization<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Primary particles visible, few large aggregates<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Raman spectroscopy<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Structural integrity of graphene \/ CNT<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">D\/G ratio; low defect density preferred<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Viscosity<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Slurry homogeneity and processability<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Consistent with formulation specification<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Selecting the Right SONOBIO Model<\/h2>\n<h3>SONOBIO Handheld (120 W, 20 kHz)<\/h3>\n<p>For small-volume screening (0.3\u2013500 mL), quick feasibility tests, or mobile use. Not suited for high-viscosity slurries or hard agglomerates requiring &gt;500 J\/mL. Useful for academic research requiring budget-friendly dispersion capability.<\/p>\n<h3>SONOBIO Integrated-Type (800 W, 25 kHz, 4.7&#8243; touchscreen)<\/h3>\n<p>Core lab instrument for 0.5 mL\u20133 L dispersion tasks. Built-in sound enclosure is a major quality-of-life advantage for labs where noise is regulated. Temperature sensor option + automatic shutoff. Programmable 5-step programs for reproducible dispersion protocols across operators.<\/p>\n<h3>SONOBIO Split-Type (1200 W standard \/ 2000 W max, 20 kHz, 7&#8243; touchscreen)<\/h3>\n<p>Most capable laboratory model. Handles 0.2 mL\u20135 L with the widest probe range (\u03a63\u201330 mm). Real-time display of time, power, total energy (J), and temperature. Three operating modes (continuous, interval, pulse). Energy-dose programming is the most scientifically rigorous way to specify nanoparticle dispersion protocols across labs and scales.<\/p>\n<h3>SONOBIO Industrial (2000 W real power, 20 kHz)<\/h3>\n<p>For 5\u201350 L batch production and continuous inline processing. \u03a640 or \u03a650 mm titanium alloy probe. Flow cell configuration available for continuous production. 24\u00d77 continuous duty rating. The production choice for battery materials, graphene ink, and industrial nano-coating manufacturers.<\/p>\n<p>All SONOBIO models feature stepless amplitude control (1\u2013100%), programmable pulse modes, CE certification, and 1-year instrument warranty. Probes are consumable items.<\/p>\n<div class=\"ss-related\" style=\"border:1px solid #e3e5e9;border-radius:6px;padding:16px 20px;margin:26px 0;background:#fafbfc;\">\n<p style=\"margin:0 0 10px;font-weight:700;color:#1a1a1a;\">Related guides<\/p>\n<ul style=\"margin:0;\">\n<li><a href=\"https:\/\/www.sinosonics.com\/ultrasonic-homogenizer\/ultrasonic-nanoemulsion-liposome-preparation\/\">Ultrasonic Nanoemulsion &#038; Liposome Preparation<\/a><\/li>\n<li><a href=\"https:\/\/www.sinosonics.com\/ultrasonic-homogenizer\/ultrasound-assisted-extraction-botanicals-food\/\">Ultrasound-Assisted Extraction of Botanicals &#038; Food<\/a><\/li>\n<li><a href=\"https:\/\/www.sinosonics.com\/ultrasonic-homogenizer\/hielscher-ultrasonic-homogenizer-alternative\/\">Hielscher Ultrasonic Homogenizer Alternative<\/a><\/li>\n<\/ul>\n<\/div>\n<h2>Frequently Asked Questions<\/h2>\n<details style=\"border:1px solid #e3e5e9;border-radius:6px;padding:12px 16px;margin:10px 0;background:#fafbfc;\">\n<summary style=\"cursor:pointer;font-weight:600;color:#1a1a1a;list-style:none;\">How long does ultrasonic dispersion of CNTs take compared to stirring?<\/summary>\n<div style=\"padding-top:10px;\">\n<p>Magnetic stirring alone does not effectively de-bundle CNTs \u2014 it mixes but does not generate sufficient shear to break van der Waals cohesion between nanotubes. Probe sonication at 60\u201370% amplitude typically achieves effective MWCNT individualization within 10\u201330 minutes of active processing (accounting for pulse off-time). The same degree of de-bundling by stirring alone may take days to weeks and often remains incomplete.<\/p>\n<\/div>\n<\/details>\n<details style=\"border:1px solid #e3e5e9;border-radius:6px;padding:12px 16px;margin:10px 0;background:#fafbfc;\">\n<summary style=\"cursor:pointer;font-weight:600;color:#1a1a1a;list-style:none;\">Does sonication damage nanoparticles or reduce their properties?<\/summary>\n<div style=\"padding-top:10px;\">\n<p>This depends on the material and the processing intensity. CNT sidewalls and graphene basal planes can develop defects under extended high-amplitude sonication \u2014 monitor with Raman spectroscopy and use the minimum energy dose required. Metal oxide nanoparticles (TiO\u2082, ZnO) are generally robust at normal processing conditions. Fragile particles (quantum dots, gold nanostars) require careful amplitude control (20\u201335%). The rule: use the minimum amplitude and energy dose that achieves the target particle size.<\/p>\n<\/div>\n<\/details>\n<details style=\"border:1px solid #e3e5e9;border-radius:6px;padding:12px 16px;margin:10px 0;background:#fafbfc;\">\n<summary style=\"cursor:pointer;font-weight:600;color:#1a1a1a;list-style:none;\">What concentration of nanoparticles can I disperse?<\/summary>\n<div style=\"padding-top:10px;\">\n<p>Probe sonication works well up to 10\u201320% w\/v for most metal oxides. At higher loadings, viscosity limits cavitation efficiency. For very high concentration slurries (&gt;20% solids, as in battery electrode pastes), it is usually necessary to start dispersion at lower concentration and add the remaining solid incrementally during sonication. The SONOBIO Industrial handles high-viscosity electrode slurries at \u03a640 mm probe diameter, where smaller probes would lose cavitation efficiency.<\/p>\n<\/div>\n<\/details>\n<details style=\"border:1px solid #e3e5e9;border-radius:6px;padding:12px 16px;margin:10px 0;background:#fafbfc;\">\n<summary style=\"cursor:pointer;font-weight:600;color:#1a1a1a;list-style:none;\">Can I use ultrasound to functionalize nanoparticles at the same time as dispersing them?<\/summary>\n<div style=\"padding-top:10px;\">\n<p>Yes \u2014 sonochemical surface modification during dispersion is a research-active technique. For example, ultrasonically assisted surface-functionalization of TiO\u2082 with silane coupling agents, or oxidative functionalization of CNT sidewalls in H\u2082SO\u2084\/HNO\u2083 mixtures, is performed simultaneously with dispersion. These processes require appropriate chemical safety precautions and solvent-resistant probe materials (standard titanium alloy is compatible with dilute acids and common organic solvents).<\/p>\n<\/div>\n<\/details>\n<details style=\"border:1px solid #e3e5e9;border-radius:6px;padding:12px 16px;margin:10px 0;background:#fafbfc;\">\n<summary style=\"cursor:pointer;font-weight:600;color:#1a1a1a;list-style:none;\">How do I reproduce a dispersion protocol across different batches or instruments?<\/summary>\n<div style=\"padding-top:10px;\">\n<p>Use <strong>total energy dose (J\/mL)<\/strong> rather than time as your primary protocol parameter. Because amplitude, pulse duty cycle, probe diameter, and batch volume all affect the effective energy per unit volume, specifying J\/mL directly is more reproducible than specifying &#8220;5 minutes at 60% amplitude.&#8221; SONOBIO Split-Type and Industrial models display cumulative energy in joules in real time; program the target dose and stop when reached.<\/p>\n<\/div>\n<\/details>\n<h2>Request a Quote<\/h2>\n<div class=\"ss-cta\" style=\"display:flex;flex-wrap:wrap;gap:14px;margin:24px 0 6px;\"><a href=\"https:\/\/wa.me\/8618626321806\" target=\"_blank\" rel=\"nofollow noopener\" style=\"flex:1 1 240px;display:inline-flex;align-items:center;justify-content:center;gap:10px;background:#25d366;color:#fff;text-decoration:none;font-weight:700;font-size:16px;line-height:1;padding:16px 22px;border-radius:10px;box-shadow:0 2px 8px rgba(37,211,102,.35);\"><svg width=\"20\" height=\"20\" viewBox=\"0 0 24 24\" fill=\"#fff\" aria-hidden=\"true\"><path d=\"M17.472 14.382c-.297-.149-1.758-.867-2.03-.967-.273-.099-.471-.148-.67.15-.197.297-.767.966-.94 1.164-.173.199-.347.223-.644.075-.297-.149-1.255-.463-2.39-1.475-.883-.788-1.48-1.761-1.653-2.059-.173-.297-.018-.458.13-.606.134-.133.298-.347.446-.52.149-.174.198-.298.298-.497.099-.198.05-.371-.025-.52-.075-.148-.669-1.612-.916-2.207-.242-.579-.487-.5-.669-.51-.173-.008-.371-.01-.57-.01-.198 0-.52.074-.792.372-.272.297-1.04 1.016-1.04 2.479 0 1.462 1.065 2.875 1.213 3.074.149.198 2.096 3.2 5.077 4.487.709.306 1.262.489 1.694.625.712.227 1.36.195 1.871.118.571-.085 1.758-.719 2.006-1.413.248-.694.248-1.289.173-1.413-.074-.124-.272-.198-.57-.347m-5.421 7.403h-.004a9.87 9.87 0 01-5.031-1.378l-.361-.214-3.741.982.998-3.648-.235-.374a9.86 9.86 0 01-1.51-5.26c.001-5.45 4.436-9.884 9.888-9.884 2.64 0 5.122 1.03 6.988 2.898a9.825 9.825 0 012.893 6.994c-.003 5.45-4.437 9.884-9.885 9.884m8.413-18.297A11.815 11.815 0 0012.05 0C5.495 0 .16 5.335.157 11.892c0 2.096.547 4.142 1.588 5.945L.057 24l6.305-1.654a11.882 11.882 0 005.683 1.448h.005c6.554 0 11.89-5.335 11.893-11.893a11.821 11.821 0 00-3.48-8.413z\"\/><\/svg>Chat on WhatsApp<\/a><a href=\"mailto:wu@sinosonics.com?subject=Quote%20Request%20-%20Nanoparticle%20Dispersion\" style=\"flex:1 1 240px;display:inline-flex;align-items:center;justify-content:center;gap:10px;background:#1f3a5f;color:#fff;text-decoration:none;font-weight:700;font-size:16px;line-height:1;padding:16px 22px;border-radius:10px;box-shadow:0 2px 8px rgba(31,58,95,.3);\"><svg width=\"20\" height=\"20\" viewBox=\"0 0 24 24\" fill=\"#fff\" aria-hidden=\"true\"><path d=\"M20 4H4c-1.1 0-2 .9-2 2v12c0 1.1.9 2 2 2h16c1.1 0 2-.9 2-2V6c0-1.1-.9-2-2-2zm0 4l-8 5-8-5V6l8 5 8-5v2z\"\/><\/svg>Get a Quote<\/a><\/div>\n<p style=\"text-align:center;margin:2px 0 10px;font-size:14px;\"><a href=\"https:\/\/www.sinosonics.com\/product-category\/ultrasonic-homogenizer-sonicator\/\" style=\"color:#5a6b7b;text-decoration:none;\">Browse the full product range &rarr;<\/a><\/p>\n<\/div>\n<p><script type=\"application\/ld+json\">{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"How long does ultrasonic dispersion of CNTs take compared to stirring?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Magnetic stirring alone does not effectively de-bundle CNTs \u2014 it mixes but does not generate sufficient shear to break van der Waals cohesion between nanotubes. Probe sonication at 60\u201370% amplitude typically achieves effective MWCNT individualization within 10\u201330 minutes of active processing (accounting for pulse off-time). The same degree of de-bundling by stirring alone may take days to weeks and often remains incomplete.\"}},{\"@type\":\"Question\",\"name\":\"Does sonication damage nanoparticles or reduce their properties?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"This depends on the material and the processing intensity. CNT sidewalls and graphene basal planes can develop defects under extended high-amplitude sonication \u2014 monitor with Raman spectroscopy and use the minimum energy dose required. Metal oxide nanoparticles (TiO\u2082, ZnO) are generally robust at normal processing conditions. Fragile particles (quantum dots, gold nanostars) require careful amplitude control (20\u201335%). The rule: use the minimum amplitude and energy dose that achieves the target particle size.\"}},{\"@type\":\"Question\",\"name\":\"What concentration of nanoparticles can I disperse?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Probe sonication works well up to 10\u201320% w\/v for most metal oxides. At higher loadings, viscosity limits cavitation efficiency. For very high concentration slurries (\\u003e20% solids, as in battery electrode pastes), it is usually necessary to start dispersion at lower concentration and add the remaining solid incrementally during sonication. The SONOBIO Industrial handles high-viscosity electrode slurries at \u03a640 mm probe diameter, where smaller probes would lose cavitation efficiency.\"}},{\"@type\":\"Question\",\"name\":\"Can I use ultrasound to functionalize nanoparticles at the same time as dispersing them?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes \u2014 sonochemical surface modification during dispersion is a research-active technique. For example, ultrasonically assisted surface-functionalization of TiO\u2082 with silane coupling agents, or oxidative functionalization of CNT sidewalls in H\u2082SO\u2084\/HNO\u2083 mixtures, is performed simultaneously with dispersion. These processes require appropriate chemical safety precautions and solvent-resistant probe materials (standard titanium alloy is compatible with dilute acids and common organic solvents).\"}},{\"@type\":\"Question\",\"name\":\"How do I reproduce a dispersion protocol across different batches or instruments?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Use total energy dose (J\/mL) rather than time as your primary protocol parameter. Because amplitude, pulse duty cycle, probe diameter, and batch volume all affect the effective energy per unit volume, specifying J\/mL directly is more reproducible than specifying \u201c5 minutes at 60% amplitude.\u201d SONOBIO Split-Type and Industrial models display cumulative energy in joules in real time; program the target dose and stop when reached.\"}}]}<\/script><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Break up nanoparticle agglomerates and achieve stable dispersions of graphene, CNT, metal oxides, and battery materials with SONOBIO ultrasonic homogenizers from Sino Sonics.<\/p>","protected":false},"author":1,"featured_media":8396,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[190],"tags":[],"class_list":["post-8427","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ultrasonic-homogenizer"],"_links":{"self":[{"href":"https:\/\/www.sinosonics.com\/es\/wp-json\/wp\/v2\/posts\/8427","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.sinosonics.com\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.sinosonics.com\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.sinosonics.com\/es\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.sinosonics.com\/es\/wp-json\/wp\/v2\/comments?post=8427"}],"version-history":[{"count":7,"href":"https:\/\/www.sinosonics.com\/es\/wp-json\/wp\/v2\/posts\/8427\/revisions"}],"predecessor-version":[{"id":8519,"href":"https:\/\/www.sinosonics.com\/es\/wp-json\/wp\/v2\/posts\/8427\/revisions\/8519"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.sinosonics.com\/es\/wp-json\/wp\/v2\/media\/8396"}],"wp:attachment":[{"href":"https:\/\/www.sinosonics.com\/es\/wp-json\/wp\/v2\/media?parent=8427"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.sinosonics.com\/es\/wp-json\/wp\/v2\/categories?post=8427"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.sinosonics.com\/es\/wp-json\/wp\/v2\/tags?post=8427"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}