Bulk 45S5 Bioactive Glass Powder Manufacturer & Wholesale Price 

Bulk 45S5 bioactive glass powder is a specialized biomaterial engineered for high-volume industrial and medical manufacturing applications. As a strategic sourcing partner connecting buyers with certified production lines, Jinan Meiyi Biotechnology Co., Ltd. provides consistent, high-purity 45S5 formulations that meet strict compositional standards (45% SiO₂, 24.5% Na₂O, 24.5% CaO, 6% P₂O₅ by weight). Our wholesale supply chain supports large-scale production of bone grafts, dental composites, and tissue engineering scaffolds. By leveraging our established global network, buyers secure competitive bulk pricing, rigorous quality control, and reliable lead times essential for commercial scalability.

What is Bulk 45S5 Bioactive Glass Powder?

45S5 Bioglass® is the original bioactive glass composition, discovered by Professor Larry Hench in 1969. The name “45S5” denotes its specific chemical makeup: 45 weight percent silica (SiO₂) and a 5:1 molar ratio of calcium to phosphorus. This specific stoichiometry is critical because it allows the material to bond chemically with both hard and soft tissues.

When produced in bulk powder form, the material serves as the foundational raw ingredient for downstream medical devices and regenerative medicine products. Unlike finished consumer goods, bulk powder requires precise control over particle size distribution, purity levels, and batch consistency. Manufacturers purchasing in bulk are typically integrating this powder into:

• Bone void fillers: Mixed with polymers or other ceramics to create putties or granules.
• Dental remineralization agents: Added to toothpaste, prophylaxis powders, or composite resins.
• 3D Printing filaments and inks: Used in bioprinting applications for scaffold fabrication.
• Wound care dressings: Incorporated into fibers or foams to accelerate healing.

The value of sourcing bulk 45S5 bioactive glass powder lies not just in the chemistry, but in the reproducibility of the manufacturing process. For industrial buyers, variation between batches can lead to failed regulatory submissions or inconsistent product performance. Therefore, a reliable supplier must demonstrate strict adherence to ISO standards and robust quality assurance protocols.

About Jinan Meiyi Biotechnology: Your Strategic Sourcing Partner

Headquartered in Jinan, Shandong Province, China, Jinan Meiyi Biotechnology Co., Ltd. operates as a subsidiary of Pacific Kangtai Scientific Instruments (Jinan) Co., Ltd. We are a professional enterprise dedicated to the research, development support, and commercialization of bioactive technologies, with a strong emphasis on applications in the cosmetics, medical aesthetics, and advanced biomedical industries.

Unlike traditional manufacturers, Jinan Meiyi Biotechnology functions as a strategic sourcing and quality-assured distribution partner. We do not engage in raw material manufacturing ourselves; instead, we leverage a well-established global supply chain network to maintain long-term cooperative relationships with internationally recognized, certified manufacturers. This model allows us to serve as a trusted enabler for innovation across the global personal care and aesthetic medicine value chain.

Our core business is structured around two complementary pillars:

1. Supply of Cosmetic and Bioactive Raw Materials: We focus exclusively on active ingredients and functional components used in formulation development. All raw materials undergo comprehensive evaluation prior to inclusion in our portfolio, with selection criteria grounded in efficacy data, stability profiles, and compatibility with modern formulation standards.
2. Distribution of Premium Finished Products: We curate a targeted range of finished products—including skincare formulations and medical-grade aesthetic devices—based on rigorous assessment of clinical relevance and technological differentiation.

For buyers of bulk 45S5 bioactive glass, partnering with Jinan Meiyi Biotechnology means accessing materials from certified manufacturers that adhere to internationally accepted quality management systems, backed by our disciplined curation methodology and technical support.

Why Choose Jinan Meiyi Biotechnology for 45S5 Powder?

Sourcing bioactive materials through intermediaries often introduces markup costs and reduces transparency regarding quality control. However, engaging with a specialized strategic partner like Jinan Meiyi Biotechnology offers distinct advantages for B2B buyers, particularly those in the medical device, dental, and aesthetic sectors.

Cost Efficiency and Pricing Transparency

Wholesale pricing models for bulk bioactive glass are driven by production volume and purification complexity. By eliminating unnecessary layers in the supply chain and leveraging our direct relationships with certified manufacturers, buyers gain access to competitive factory-direct pricing. This is crucial for companies scaling up production, where raw material costs significantly impact final product margins. Transparent pricing structures allow for better financial forecasting and long-term contract negotiations.

Quality Control and Batch Consistency

In the synthesis of 45S5, minor deviations in temperature, cooling rates, or raw material purity can alter the glass network structure. This affects the dissolution rate and bioactivity. While we do not manufacture the glass ourselves, our quality assurance framework centers on strict supplier qualification and documentation traceability. We ensure that our partners control the entire lifecycle:

• Raw Material Sourcing: Our partnered manufacturers use high-purity oxides and carbonates to minimize trace metal contaminants.
• Melt-Quench Process: Precise thermal management is verified to ensure amorphous structure without unwanted crystallization.
• Milling and Sieving: Advanced jet milling techniques are employed to achieve specific particle size distributions (PSD) required for different applications.

Every kilogram of powder supplied by Jinan Meiyi Biotechnology is accompanied by full technical dossiers, including Certificates of Analysis (CoA), safety data sheets, and regulatory status summaries. This oversight ensures that every batch meets stringent specifications, reducing the risk of production delays due to substandard inputs.

Customization Capabilities and Technical Support

Standard 45S5 powder may not suit every application. Some dental composites require ultra-fine particles (<5 µm), while bone grafts may benefit from larger granules (300-800 µm). Through our network of certified manufacturers, we facilitate customization services, including:

• Tailored particle size distributions via controlled milling.
• Surface modifications to enhance compatibility with specific polymer matrices.
• Specialized packaging solutions to maintain sterility or prevent moisture absorption during transit.

Furthermore, our service philosophy is rooted in partnership rather than transaction. Our technically trained team provides consultation, regulatory intelligence sharing, and collaborative problem-solving, helping clients optimize their formulations and accelerate product development cycles.

Technical Specifications and Composition Analysis

Understanding the technical parameters of 45S5 bioactive glass is essential for proper integration into final products. The material’s performance is dictated by its chemical composition and physical properties.

The Role of Particle Size in Application Performance

Particle size is arguably the most critical physical variable for bulk buyers. It influences the kinetics of the bioactive response.

• Nano/Micro Powders (< 10 µm): These particles have a high surface-area-to-volume ratio. They dissolve rapidly, releasing ions quickly. This is ideal for dentifrices, desensitizing agents, and injectable pastes where rapid mineral deposition is desired. However, they can cause significant pH spikes if used in large quantities without buffering.
• Medium Granules (50 – 150 µm): Often used in periodontal defect filling and mixed with collagen sponges. They offer a balance between dissolution rate and structural stability.
• Coarse Granules (300 – 800 µm): Typically employed in bone void fillers for orthopedic and maxillofacial surgeries. The larger size provides a scaffold structure that supports cell infiltration and vascularization while maintaining space for new bone growth.

When ordering bulk 45S5 bioactive glass powder through Jinan Meiyi Biotechnology, specifying the exact particle size distribution (D10, D50, D90) is vital to ensure the material performs as intended in your specific formulation.

How 45S5 Bioactive Glass Works: Mechanism of Action

To effectively market or utilize products derived from 45S5 powder, understanding the underlying biological mechanism is necessary. The bioactivity of 45S5 is not passive; it triggers a cascade of biological events upon contact with physiological fluids.

The Five Stages of Bioactivity

The interaction between 45S5 glass and body fluid occurs in five distinct stages, leading to the formation of a hydroxycarbonate apatite (HCA) layer. This HCA layer is chemically and structurally similar to natural bone mineral, allowing for strong chemical bonding.

1. Ion Exchange: Sodium (Na⁺) and calcium (Ca²⁺) ions from the glass exchange with hydrogen (H⁺) or hydronium (H₃O⁺) ions from the surrounding fluid. This raises the local pH.
2. Silica Network Breakdown: The loss of modifiers causes the silica (Si-O-Si) network to break down, forming silanol (Si-OH) groups on the glass surface.
3. Polycondensation: Silanol groups repolymerize to form a porous silica-rich gel layer on the surface.
4. Amorphous Calcium Phosphate Formation: Calcium and phosphate ions from the glass and surrounding fluid migrate to the surface, forming an amorphous calcium phosphate (ACP) layer.
5. Crystallization: The ACP layer crystallizes into hydroxycarbonate apatite (HCA), which bonds with collagen and proteins in the surrounding tissue.

This sequence typically occurs within minutes to hours, depending on particle size and surface area. For manufacturers, controlling the rate of these stages is key to product efficacy. For instance, in dental sensitivity products, rapid ion release is beneficial for occluding dentinal tubules. In bone grafts, a slower, sustained release supports long-term osteogenesis.

Key Applications for Bulk 45S5 Powder

The versatility of 45S5 bioactive glass allows it to be utilized across various medical and consumer health sectors. Below are the primary industries driving demand for bulk powder supplies.

1. Dental Care and Restorative Dentistry

The dental industry is one of the largest consumers of fine-grade 45S5 powder. Its ability to release calcium and phosphate ions makes it highly effective for remineralization.

• Toothpaste and Mouthwash: Micro-sized 45S5 particles help occlude exposed dentinal tubules, reducing sensitivity. They also form a protective mineral layer on enamel, resisting acid erosion.
• Prophylaxis Powders: Used in air-polishing devices to clean teeth without damaging enamel or restorations.
• Composite Resins: Added to filling materials to promote secondary dentin formation and improve the seal at the restoration margin.
• Periodontal Regeneration: Granules are placed in gum pockets to stimulate bone regrowth around teeth affected by periodontitis.

2. Orthopedics and Bone Grafting

In orthopedics, 45S5 is used to repair bone defects resulting from trauma, tumor resection, or spinal fusion.

• Bone Void Fillers: The powder is mixed with binders (such as collagen or synthetic polymers) to create putties that can be molded into irregular defect sites.
• Spinal Fusion Cages: Coated or filled with 45S5 to enhance osseointegration between the implant and vertebral bone.
• Joint Replacement: Used in coatings for metallic implants to encourage bone ingrowth, securing the implant mechanically and biologically.

3. Wound Care and Dermatology

Recent advancements have expanded the use of 45S5 into soft tissue healing. The alkaline environment created by ion exchange has potent antibacterial effects.

• Chronic Wound Dressings: Incorporating 45S5 into fibers or foams helps manage infection in diabetic ulcers and burns.
• Hemostatic Agents: The material promotes rapid blood clotting, making it useful in emergency trauma care.

4. Tissue Engineering and 3D Bioprinting

As regenerative medicine evolves, 45S5 powder is increasingly used as a bioink component.

• Scaffold Fabrication: Mixed with biodegradable polymers (like PCL or PLGA) to create 3D-printed scaffolds that degrade as new bone forms.
• Stem Cell Differentiation: The ionic dissolution products from 45S5 have been shown to upregulate osteogenic genes in mesenchymal stem cells, accelerating bone formation.

Comparison: 45S5 Bioactive Glass vs. Other Biomaterials

When selecting raw materials for medical devices, engineers often compare 45S5 against other common biomaterials such as Hydroxyapatite (HA), Tricalcium Phosphate (TCP), and inert silica glasses. Understanding these differences helps in positioning the final product.

Key Takeaway: While HA and TCP are excellent for providing structural support, 45S5 is superior in stimulating active biological responses and bonding with soft tissue. For applications requiring rapid integration and antibacterial properties, 45S5 is the preferred choice. However, due to its brittleness, it is often combined with polymers or used in non-load-bearing applications.

Manufacturing Process and Quality Assurance

Producing high-quality bulk 45S5 bioactive glass powder requires a sophisticated manufacturing setup. At Jinan Meiyi Biotechnology, we ensure that our partner manufacturers follow rigorous processes. The process begins with the precise weighing of high-purity raw materials: silica sand, sodium carbonate, calcium carbonate, and phosphorus pentoxide.

Melt-Quench Method

The standard production method involves melting the raw mix at temperatures between 1300°C and 1400°C. This high temperature ensures homogeneity and removes volatile impurities. The molten glass is then poured out and rapidly cooled (quenched) to room temperature. This rapid cooling prevents crystallization, locking the atoms in an amorphous state, which is essential for bioactivity.

Milling and Classification

The resulting glass frit is crushed and milled. Jet milling is commonly used for fine powders to avoid contamination from grinding media. The milled powder is then classified using air separators to achieve the target particle size distribution. Strict controls are in place to remove any metallic contaminants introduced during milling.

Quality Control Protocols

We implement rigorous QC checks through our partner network at every stage:

• X-Ray Diffraction (XRD): Confirms the amorphous nature of the glass and detects any crystalline phases.
• Inductively Coupled Plasma (ICP): Verifies the exact chemical composition and checks for trace heavy metals.
• Laser Diffraction: Measures particle size distribution to ensure consistency with specifications.
• pH Testing: Monitors the alkalinity shift in simulated body fluid to confirm bioactivity levels.
• Microbial Testing: Ensures the powder meets bioburden limits, especially for medical-grade supplies.

Certifications such as ISO 13485 (Medical Devices Quality Management) are indicative of our manufacturing partners’ commitment to quality and regulatory compliance, which we verify through our audit processes.

How to Choose the Right Supplier for Bulk 45S5 Powder

Selecting the right partner for bulk material supply is a critical business decision. Here are the key factors to evaluate when vetting a supplier like Jinan Meiyi Biotechnology.

1. Regulatory Compliance and Documentation

Ensure the supplier provides comprehensive documentation, including Certificates of Analysis (CoA) for each batch. Check for compliance with relevant standards such as ISO 10993 (Biological evaluation of medical devices) and ASTM F2458 (Standard Specification for Glass-Based Materials for Surgical Implants). Jinan Meiyi Biotechnology prioritizes documentation traceability and regulatory readiness for all supplied materials.

2. Production Capacity and Scalability

Assess the supplier’s ability to meet your current and future volume requirements through their manufacturing network. A scalable supply chain prevents bottlenecks as your product gains market traction. Ask about lead times for large orders and their inventory management practices.

3. Technical Support and R&D Collaboration

The best suppliers act as partners, not just vendors. Look for suppliers with technically trained teams who can assist with formulation challenges, particle size optimization, and regulatory queries. Jinan Meiyi Biotechnology actively monitors emerging trends in bioactive ingredient science and integrates these insights into our advisory offerings, helping to accelerate your product development cycle.

4. Packaging and Logistics

Bioactive glass is hygroscopic and can react with moisture in the air. Proper packaging is essential to maintain stability. Suppliers should offer moisture-barrier packaging (e.g., aluminum foil bags with desiccants) and robust outer containers to prevent damage during shipping. We maintain strict control over storage conditions and shipping protocols to ensure product integrity from origin to end-user.

Common Challenges and Solutions in Using 45S5 Powder

Integrating bioactive glass into commercial products comes with specific technical challenges. Addressing these early can save time and resources.

Challenge 1: pH Spike and Cytotoxicity

The rapid ion exchange of 45S5 can cause a localized increase in pH, which may be cytotoxic to cells if not managed. Solution: Use buffered solutions in formulations, limit the concentration of glass powder, or use larger particle sizes that dissolve more slowly. Pre-reacting the glass to form a partial silica layer can also moderate the initial pH spike.

Challenge 2: Agglomeration

Fine bioactive glass particles tend to agglomerate due to electrostatic forces and moisture absorption. Solution: Implement surface treatments with silanes or other coupling agents to improve dispersion in polymer matrices. Ensure storage conditions are dry and use anti-caking agents if appropriate for the application.

Challenge 3: Mechanical Weakness

Pure 45S5 scaffolds are brittle and lack tensile strength. Solution: Create composite materials by combining 45S5 powder with polymers (e.g., PCL, PLA, Collagen) or other ceramics. This hybrid approach leverages the bioactivity of the glass and the mechanical resilience of the polymer.

Frequently Asked Questions (FAQ)

What is the shelf life of bulk 45S5 bioactive glass powder?

When stored in a cool, dry place in sealed, moisture-proof packaging, 45S5 bioactive glass powder typically has a shelf life of 2 to 3 years. Exposure to humidity can initiate surface reactions, reducing bioactivity and causing clumping. Always check the manufacturer’s expiration date and storage recommendations provided in the technical dossier.

Is 45S5 bioactive glass safe for human use?

Yes, 45S5 is biocompatible and has been extensively tested. It is approved for various medical and dental applications globally. However, safety depends on proper processing and sterilization. Suppliers like Jinan Meiyi Biotechnology ensure the powder is sourced from manufacturers who meet ISO 10993 biological safety standards.

Can 45S5 powder be sterilized?

Yes, but the method matters. Gamma irradiation and ethylene oxide (EtO) gas are commonly used and do not significantly alter the glass structure. Autoclaving (steam sterilization) can be used but may cause slight surface changes due to heat and moisture. Dry heat sterilization is another option. Always validate the sterilization process to ensure it does not compromise bioactivity.

What is the minimum order quantity (MOQ) for bulk purchases?

MOQs vary by manufacturer and specific product grade. Some specialized suppliers offer smaller quantities (e.g., 1 kg) for R&D purposes, while others focus on industrial scales (e.g., 25 kg drums or tons). Contact Jinan Meiyi Biotechnology directly to discuss your specific volume needs and negotiate pricing tiers.

Does 45S5 bioactive glass contain heavy metals?

High-quality 45S5 produced by reputable manufacturers contains negligible levels of heavy metals, well below regulatory limits. Raw materials are sourced for high purity, and the melting process helps volatilize certain impurities. Always request a Certificate of Analysis (CoA) to verify trace element levels.

How does 45S5 compare to NovaBone or Bioglass®?

“Bioglass®” is a trademarked term often associated with the original patent holders, while “NovaBone” is a specific commercial brand. 45S5 refers to the generic chemical composition. Many manufacturers produce generic 45S5 that is chemically identical to these branded versions. The key difference lies in the quality control, particle size precision, and regulatory support provided by the supplier.

Strategic Sourcing: Maximizing Value in 2026

As the global demand for regenerative medicine and advanced dental care grows, the supply chain for bioactive materials is becoming more competitive. In 2026, buyers are prioritizing suppliers who offer not just low prices, but also supply chain resilience and technical partnership.

Securing a reliable source of bulk 45S5 bioactive glass powder involves looking beyond the initial price per kilogram. Consider the total cost of ownership, including quality consistency, regulatory support, and the potential for joint development. A supplier like Jinan Meiyi Biotechnology, who understands the nuances of your application and maintains strong ties with upstream innovation, can help optimize your formulation, reducing waste and improving final product performance.

Furthermore, sustainability is becoming a key consideration. Manufacturers who employ energy-efficient melting processes and responsible sourcing practices are increasingly preferred by eco-conscious brands and regulatory bodies. We actively integrate these insights into our portfolio strategy, ensuring our partners align with evolving global standards.

Conclusion and Next Steps

Bulk 45S5 bioactive glass powder remains a cornerstone material in the fields of orthopedics, dentistry, and tissue engineering. Its unique ability to bond with living tissue and stimulate regeneration offers unparalleled value for medical device manufacturers. By sourcing through a specialized strategic partner like Jinan Meiyi Biotechnology, companies can ensure high quality, competitive pricing, and the technical support needed to innovate.

Whether you are developing a new desensitizing toothpaste, a bone void filler, or a next-generation 3D printed scaffold, the quality of your raw material dictates the success of your final product. Partnering with a supplier who prioritizes purity, consistency, compliance, and scientific integrity is the first step toward market leadership.

Ready to scale your production?

Contact our technical sales team today to discuss your specific requirements for bulk 45S5 bioactive glass powder. We offer customized particle sizes, comprehensive quality documentation, and competitive wholesale pricing to support your growth. Leveraging our global network and technical expertise, Jinan Meiyi Biotechnology is committed to facilitating faster, safer, and more effective translation of bioactive science into real-world benefits.

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