{"id":8425,"date":"2026-06-14T21:11:54","date_gmt":"2026-06-14T13:11:54","guid":{"rendered":"https:\/\/www.sinosonics.com\/uncategorized\/ultrasonic-nanoemulsion-liposome-preparation\/"},"modified":"2026-06-15T07:58:10","modified_gmt":"2026-06-14T23:58:10","slug":"ultrasonic-nanoemulsion-liposome-preparation","status":"publish","type":"post","link":"https:\/\/www.sinosonics.com\/es\/ultrasonic-homogenizer\/ultrasonic-nanoemulsion-liposome-preparation\/","title":{"rendered":"Ultrasonic Nanoemulsion &#038; Liposome Preparation: Process Guide and Equipment Selection"},"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>Conventional high-speed mixers produce emulsions with droplet sizes above 1 \u00b5m. These macro-emulsions cream, sediment, or coalesce within hours to days. Nanoemulsions \u2014 with oil droplet diameters in the 20\u2013500 nm range \u2014 behave fundamentally differently: they resist creaming and coalescence, penetrate biological membranes more readily, and enable encapsulation efficiencies that are simply not achievable at larger droplet scales. The same physical principle that makes them useful also makes them harder to produce: forcing a liquid into droplets below 200 nm requires far more energy input than a conventional rotor-stator can deliver.<\/p>\n<p>Ultrasonic homogenization is the standard laboratory method for nanoemulsion and liposome preparation precisely because cavitation-driven energy delivery is intense, localized, and tunable at a scale that matches the droplet-size requirements of pharmaceutical, cosmetic, and nutraceutical formulations.<\/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;\">Cavitation at 20 kHz creates localized pressures of hundreds of bar and transient temperatures over 1000 C.<\/li>\n<li style=\"margin:4px 0;\">O\/W nanoemulsion baseline: oil 10-30%, surfactant 2-5% (Tween 80 or lecithin), water to 100%.<\/li>\n<li style=\"margin:4px 0;\">Nanoemulsions: amplitude 40-60%, 5s on\/5s off pulsing, 5-15 minutes for 10-100 mL batches.<\/li>\n<li style=\"margin:4px 0;\">Liposome SUVs (50-200 nm, PDI &lt; 0.2): amplitude 20-35%, 3s on\/7s off, 10-20 minutes.<\/li>\n<li style=\"margin:4px 0;\">Most formulations reach 100-300 nm; below 50 nm needs high-pressure homogenization or microfluidization.<\/li>\n<\/ul>\n<\/div>\n<h2>The Physics: How Ultrasonic Cavitation Creates Nanodroplets<\/h2>\n<p>When the titanium probe of a SONOBIO sonicator operates at 20 kHz, it launches compression and rarefaction cycles into the liquid at 20,000 times per second. During rarefaction, vapor and dissolved gas nucleate into microbubbles. When those bubbles collapse, they release energy in an extremely small volume \u2014 pressures in the hundreds of bar and transient temperatures exceeding 1000 \u00b0C at the collapse point, lasting only nanoseconds. The surrounding bulk liquid does not heat to those temperatures, but the mechanical shear forces radiating from each collapse event are enough to shatter oil droplets and lipid vesicles down into the nanometer range.<\/p>\n<p>Two mechanisms operate simultaneously:<\/p>\n<ol>\n<li><strong>Mechanical shear:<\/strong> The liquid jet produced by asymmetric bubble collapse shears the oil-water interface, breaking large droplets into smaller ones.<\/li>\n<li><strong>Turbulent micro-mixing:<\/strong> The cavitation field generates intense local turbulence that continuously brings fresh oil-water interface into the high-shear zone, ensuring that the entire emulsion volume is processed rather than just the region immediately around the probe tip.<\/li>\n<\/ol>\n<p>The result is a narrow droplet size distribution achievable in minutes with a bench-top instrument \u2014 something that would require high-pressure homogenization at thousands of psi or a microfluidizer to replicate.<\/p>\n<h2>Nanoemulsion: Key Process Parameters<\/h2>\n<h3>Surfactant Selection and HLB<\/h3>\n<p>Ultrasonic cavitation does the mechanical work; the surfactant stabilizes the new droplet surfaces that are created. Without the right surfactant at sufficient concentration, the droplets will re-coalesce as soon as cavitation stops.<\/p>\n<ul>\n<li><strong>Oil-in-water (O\/W) nanoemulsions:<\/strong> polysorbate 80 (Tween 80), lecithin, poloxamer 407, or Cremophor EL. HLB 10\u201318.<\/li>\n<li><strong>Water-in-oil (W\/O) nanoemulsions:<\/strong> Span 80 alone or in combination with Tween 80. HLB 4\u20138.<\/li>\n<li><strong>Total surfactant concentration:<\/strong> typically 2\u201310% w\/w for pharmaceutical emulsions; food-grade systems may use lower-HLB alternatives such as lecithin or saponins.<\/li>\n<\/ul>\n<p>A good starting ratio for O\/W nanoemulsion: oil 10\u201330%, surfactant 2\u20135% (Tween 80 or lecithin), water to 100%.<\/p>\n<h3>Oil-to-Water Ratio<\/h3>\n<p>Lower oil fractions generally produce smaller, more stable droplets. For initial screening, a 10% oil \/ 90% water system is manageable. Industrial formulations with 20\u201340% oil are feasible but typically require higher surfactant loading and extended processing.<\/p>\n<h3>Amplitude and Processing Time<\/h3>\n<ul>\n<li>Start at <strong>40\u201360% amplitude<\/strong> and increase if droplet size measurements (DLS) indicate insufficient reduction.<\/li>\n<li>Process in <strong>pulsed mode:<\/strong> 5 s on \/ 5 s off to limit bulk temperature rise.<\/li>\n<li>Typical processing times: <strong>5\u201315 minutes of active sonication<\/strong> for 10\u2013100 mL batches.<\/li>\n<li>Monitor with DLS every few minutes to find the processing time at which further sonication no longer reduces droplet size \u2014 this is the efficiency plateau.<\/li>\n<\/ul>\n<h3>Temperature Management<\/h3>\n<div class=\"ss-note\" style=\"border-left:4px solid #c47d12;background:#fdf6e9;padding:12px 16px;margin:18px 0;border-radius:0 6px 6px 0;\">\n<p style=\"margin:0;\"><strong style=\"color:#c47d12;\">Warning:<\/strong> Keep samples in an ice-water bath during sonication and use temperature-limit auto-shutoff to protect heat-labile actives.<\/p>\n<\/div>\n<p>Thermal degradation of heat-labile actives (vitamins, peptides, certain APIs) is the primary risk. Keep the emulsion vessel in an ice-water bath during sonication. SONOBIO instruments with a temperature probe can be set to halt automatically when the sample temperature reaches a defined limit.<\/p>\n<h3>Volume Scale-Up<\/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;\">Batch Volume<\/th>\n<th style=\"background:#1f3a5f;color:#fff;text-align:left;padding:11px 15px;border:1px solid #2a4a73;font-weight:600;\">Recommended Probe<\/th>\n<th style=\"background:#1f3a5f;color:#fff;text-align:left;padding:11px 15px;border:1px solid #2a4a73;font-weight:600;\">Recommended Model<\/th>\n<\/tr>\n<tr>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">1\u201350 mL<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">\u03a66\u20139 mm<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">SONOBIO Integrated or Split<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">50\u2013600 mL<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">\u03a612.7 mm<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">SONOBIO Integrated (800 W)<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">200 mL\u20135 L<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">\u03a620\u201330 mm<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">SONOBIO Split (1200\u20132000 W)<\/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;\">SONOBIO Industrial (2000 W)<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Continuous production<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">Flow cell + \u03a640 mm probe<\/td>\n<td style=\"padding:10px 15px;border:1px solid #e3e5e9;vertical-align:top;\">SONOBIO Industrial with inline flow cell<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Liposome Preparation by Sonication<\/h2>\n<div class=\"ss-note\" style=\"border-left:4px solid #1e8e5a;background:#eaf7f0;padding:12px 16px;margin:18px 0;border-radius:0 6px 6px 0;\">\n<p style=\"margin:0;\"><strong style=\"color:#1e8e5a;\">Important:<\/strong> After liposome sonication, centrifuge and 0.22 um filter to remove titanium particles eroded from the probe.<\/p>\n<\/div>\n<p>Liposomes are phospholipid bilayer vesicles used as drug delivery vehicles, vaccine adjuvants, and model membrane systems. Sonication is one of the oldest and most reliable methods for producing small unilamellar vesicles (SUVs) in the 50\u2013200 nm range.<\/p>\n<h3>Standard Thin-Film Hydration + Sonication Protocol<\/h3>\n<p><strong>Step 1 \u2014 Thin-film formation<\/strong><\/p>\n<p>Dissolve phospholipids (e.g., DPPC, POPC, or soy lecithin) and any lipid-soluble drug in chloroform or ethanol. Evaporate solvent under nitrogen or in a rotary evaporator to form a thin lipid film on the flask wall. Dry under vacuum for at least 2 hours to remove residual solvent.<\/p>\n<p><strong>Step 2 \u2014 Hydration<\/strong><\/p>\n<p>Add warm aqueous buffer (typically pH 7.4 PBS) above the lipid phase transition temperature (e.g., \u2265 60 \u00b0C for DPPC, room temperature for POPC). Vortex vigorously for 5 minutes to produce multilamellar vesicles (MLVs) in the 500 nm\u20135 \u00b5m range.<\/p>\n<p><strong>Step 3 \u2014 Sonication (probe or bath)<\/strong><\/p>\n<ul>\n<li>Place the MLV suspension in an ice bath to maintain temperature below Tm during probe sonication.<\/li>\n<li>Insert SONOBIO probe (\u03a66 mm microtip for 1\u201310 mL; \u03a612.7 mm for 10\u2013100 mL).<\/li>\n<li>Amplitude: <strong>20\u201335%<\/strong> (liposomes rupture more easily than cell walls; excessive amplitude damages bilayer integrity).<\/li>\n<li>Pulse: 3 s on \/ 7 s off.<\/li>\n<li>Total active sonication: <strong>10\u201320 minutes<\/strong> for SUV formation.<\/li>\n<li>Monitor size by DLS; target 50\u2013200 nm, PDI &lt; 0.2.<\/li>\n<\/ul>\n<p><strong>Step 4 \u2014 Clarification<\/strong><\/p>\n<p>Centrifuge at 10,000\u201315,000 \u00d7 g for 10 minutes to pellet any probe-tip titanium particles (this step is important for pharmaceutical applications). Filter through a 0.22 \u00b5m or 0.45 \u00b5m membrane to sterilize and further remove large aggregates.<\/p>\n<p><strong>Step 5 \u2014 Characterization<\/strong><\/p>\n<ul>\n<li>Dynamic light scattering (DLS): Z-average diameter and PDI<\/li>\n<li>Zeta potential: ideally &gt; \u00b130 mV for colloidal stability<\/li>\n<li>Encapsulation efficiency: drug quantification in supernatant vs. total<\/li>\n<\/ul>\n<h3>Non-Contact Sonication for Liposomes<\/h3>\n<p>For oxygen-sensitive formulations, small volumes, or sealed-tube processing, the SONOBIO Non-Contact sonicator processes 8 sealed tubes simultaneously without probe immersion. This approach is increasingly used in mRNA-LNP (lipid nanoparticle) screening workflows where cross-contamination between formulation variants must be eliminated.<\/p>\n<h2>Industrial Nanoemulsion Production<\/h2>\n<p>Scaling from a 50 mL lab batch to a 50 L industrial batch requires more than a bigger probe. Several factors change:<\/p>\n<ul>\n<li><strong>Power density<\/strong> (W\/mL) must be maintained. A 1200 W probe that delivers 24 W\/mL at 50 mL must scale to 2000 W+ to maintain adequate intensity in a 50 L batch \u2014 achieved with the SONOBIO Industrial 2000 W unit and \u03a640 or \u03a650 mm probe.<\/li>\n<li><strong>Flow cell configuration<\/strong> enables continuous inline processing: the emulsion passes through the sonication chamber at a controlled flow rate, receiving a defined energy dose per pass. Multiple passes can be run until the target droplet size is reached. This eliminates the batch-size limitation entirely.<\/li>\n<li><strong>Temperature control<\/strong> at industrial scale requires external heat exchange (jacketed vessel or plate exchanger) since ice baths are impractical at &gt;5 L.<\/li>\n<\/ul>\n<p>Applications where industrial sonication is the production method of choice include:<\/p>\n<ul>\n<li>CBD\/cannabis oil nanoemulsions for beverage and supplement products<\/li>\n<li>Pharmaceutical nanosuspensions and self-nanoemulsifying drug delivery systems (SNEDDS)<\/li>\n<li>Cosmetic skin-care emulsions (retinol, vitamin C, hyaluronic acid in nano-carrier form)<\/li>\n<li>Food-grade emulsions (essential oil dispersions, omega-3 delivery systems)<\/li>\n<\/ul>\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-nanoparticle-dispersion-deagglomeration\/\">Ultrasonic Nanoparticle Dispersion &#038; De-agglomeration<\/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;\">What droplet size can I expect from sonication?<\/summary>\n<div style=\"padding-top:10px;\">\n<p>Starting from a coarse premix, most formulations with appropriate surfactant reach 100\u2013300 nm after 10\u201315 minutes of pulsed sonication. Optimized systems with fine-tuned surfactant-to-oil ratios and longer processing times can reach 50\u2013100 nm. Particle size below 50 nm typically requires high-pressure homogenization or microfluidization as a supplementary step.<\/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;\">Is probe sonication suitable for GMP pharmaceutical production?<\/summary>\n<div style=\"padding-top:10px;\">\n<p>Probe sonication is widely used at lab and pilot scale for pharmaceutical formulation development. For GMP manufacturing, the main concern is titanium particle contamination from probe erosion, which is addressed by post-sonication membrane filtration and validated probe replacement schedules. Several pharmaceutical manufacturers use probe sonication at pilot scale (1\u201310 L) and transition to high-pressure homogenizers for commercial volumes.<\/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 sonication to load drugs into pre-formed liposomes?<\/summary>\n<div style=\"padding-top:10px;\">\n<p>Yes \u2014 a technique called remote loading or active loading after sonication is common, but some protocols also use sonication in the presence of the drug. For lipophilic drugs, hydration in the presence of the dissolved drug is most common. For hydrophilic drugs, brief sonication after drug addition can promote encapsulation but risks drug degradation \u2014 optimization is needed.<\/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 prevent lipid oxidation during sonication?<\/summary>\n<div style=\"padding-top:10px;\">\n<p>Use oxygen-free or nitrogen-sparged buffer for hydration, work under inert atmosphere where possible, add antioxidants (\u03b1-tocopherol, ascorbic acid) to the formulation, and keep processing times short with pulsed mode. The SONOBIO Non-Contact sonicator allows sealed-tube processing, which minimizes oxygen exposure during sonication.<\/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 is the difference between a nanoemulsion and a microemulsion?<\/summary>\n<div style=\"padding-top:10px;\">\n<p>Microemulsions are thermodynamically stable and form spontaneously on mixing \u2014 no energy input required. Nanoemulsions are kinetically stable (not thermodynamically) and require energy input to produce, but can be stable for months to years under the right formulation conditions. The terms are often used loosely; in practice, formulation developers use DLS to characterize what they have rather than relying on nomenclature.<\/p>\n<\/div>\n<\/details>\n<h2>Request a Quote or Sample Protocol<\/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-%20Nanoemulsion%20Liposome\" 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\":\"What droplet size can I expect from sonication?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Starting from a coarse premix, most formulations with appropriate surfactant reach 100\u2013300 nm after 10\u201315 minutes of pulsed sonication. Optimized systems with fine-tuned surfactant-to-oil ratios and longer processing times can reach 50\u2013100 nm. Particle size below 50 nm typically requires high-pressure homogenization or microfluidization as a supplementary step.\"}},{\"@type\":\"Question\",\"name\":\"Is probe sonication suitable for GMP pharmaceutical production?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Probe sonication is widely used at lab and pilot scale for pharmaceutical formulation development. For GMP manufacturing, the main concern is titanium particle contamination from probe erosion, which is addressed by post-sonication membrane filtration and validated probe replacement schedules. 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For hydrophilic drugs, brief sonication after drug addition can promote encapsulation but risks drug degradation \u2014 optimization is needed.\"}},{\"@type\":\"Question\",\"name\":\"How do I prevent lipid oxidation during sonication?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Use oxygen-free or nitrogen-sparged buffer for hydration, work under inert atmosphere where possible, add antioxidants (\u03b1-tocopherol, ascorbic acid) to the formulation, and keep processing times short with pulsed mode. The SONOBIO Non-Contact sonicator allows sealed-tube processing, which minimizes oxygen exposure during sonication.\"}},{\"@type\":\"Question\",\"name\":\"What is the difference between a nanoemulsion and a microemulsion?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Microemulsions are thermodynamically stable and form spontaneously on mixing \u2014 no energy input required. Nanoemulsions are kinetically stable (not thermodynamically) and require energy input to produce, but can be stable for months to years under the right formulation conditions. The terms are often used loosely; in practice, formulation developers use DLS to characterize what they have rather than relying on nomenclature.\"}}]}<\/script><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Produce stable nanoemulsions (droplets <200 nm) and liposomes using ultrasonic homogenizers. Learn parameters, protocols, and how SONOBIO sonicators from Sino Sonics fit your formulation workflow.\n<\/p>","protected":false},"author":1,"featured_media":8399,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[190],"tags":[],"class_list":["post-8425","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\/8425","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=8425"}],"version-history":[{"count":7,"href":"https:\/\/www.sinosonics.com\/es\/wp-json\/wp\/v2\/posts\/8425\/revisions"}],"predecessor-version":[{"id":8527,"href":"https:\/\/www.sinosonics.com\/es\/wp-json\/wp\/v2\/posts\/8425\/revisions\/8527"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.sinosonics.com\/es\/wp-json\/wp\/v2\/media\/8399"}],"wp:attachment":[{"href":"https:\/\/www.sinosonics.com\/es\/wp-json\/wp\/v2\/media?parent=8425"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.sinosonics.com\/es\/wp-json\/wp\/v2\/categories?post=8425"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.sinosonics.com\/es\/wp-json\/wp\/v2\/tags?post=8425"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}