Overview

Rapid Antibody Production

Gram-scale Antibody Production

Antibody+X

Catalog Antibody Products

Antibody+X
Service Introduction

As antibody-based therapeutics continue to diversify, their levels of development maturity vary – while formats such as bispecific antibodies and ADCs have received market approval, others like antibody-radionuclide and antibody-nucleic acid conjugates remain in early-stage and require further research to validate their pharmaceutical feasibility and commercial potential.

To meet these evolving demands, Sanyou Bio offers its Antibody + X customized development service, supporting the R&D of complex formats including antibody-small molecule conjugates, antibody-protein fusions, multispecific antibodies, and antibody-nucleic acid complexes. This platform delivers flexible and innovative solutions for next-generation biotherapeutics.

Antibody+X
Service Process (Take ADC as an example)

Note: The workflow outlined above also applies to antibody–small molecule conjugates. For antibody–protein combinations, both conjugation and fusion expression strategies are available. Antibody–antibody constructs are typically developed through fusion expression to ensure stability and expression efficiency

Service Content
Antibody+Small molecule
Site-specific and non-site-specific conjugation
Diverse payload options: ~10 toxins (e.g., DXD, MMAE, SN38) and validated chelators (e.g., DOTA, NOTA)
Comprehensive QC: Dozens of analytical methods including SEC-HPLC, HIC, and MALS
Proven expertise: Over 500 antibody conjugation projects completed
Toxin
Nuclid
Protac
Antibody+Protein
Fusion expression + in vitro conjugation
Multiple expression systems available (eukaryotic, prokaryotic, insect cell)
Analytical assays including SDS-PAGE, SEC, MALS, ELISA, and SPR to assess purity and activity
Extensive experience in preparing nearly 100 antibody-based complexes
Enzyme
Peptides
Cytokines
Antibody + Nucleic acid
Conjugation methods: Amine-carboxyl coupling, thiol-maleimide conjugation, and click chemistry
abx.AntibodyX.antibody3.tex2
Analytical assays: SDS-PAGE, fluorescent labeling, DLS, or ELISA
siRNA
ASO
Antibody+Antibody
Fusion expression + in vitro conjugation
Over 150 bispecific and multispecific antibody formats available
Multi-step purification to remove impurities (e.g., aggregates, fragments, homodimers)
Experience in developing >2,000 multispecific antibodies
BsAb
TsAb
Service Highlights
Advanced platforms for complex antibodies
Sanyou Bio breaks free from standardized workflows with advanced platform including toxin conjugation, fusion expression, and gene design —to address demanding requirements such as complex bispecific antibody production, ADC payload conjugation, radionuclide intermediate coupling and antibody-protein fusion expression.
Ensuring data transparency and intellectual property protection
Sanyou Bio provides clients with real-time project tracking and full workflow visibility. Our operations are dual-certified under the ISO9001 Quality Management System and ISO/IEC27001 Information Security Management System, ensuring data authenticity, security, and robust IP protection throughout the collaboration.
Service Introduction

As antibody-based therapeutics continue to diversify, their levels of development maturity vary – while formats such as bispecific antibodies and ADCs have received market approval, others like antibody-radionuclide and antibody-nucleic acid conjugates remain in early-stage and require further research to validate their pharmaceutical feasibility and commercial potential.

To meet these evolving demands, Sanyou Bio offers its Antibody + X customized development service, supporting the R&D of complex formats including antibody-small molecule conjugates, antibody-protein fusions, multispecific antibodies, and antibody-nucleic acid complexes. This platform delivers flexible and innovative solutions for next-generation biotherapeutics.

Antibody+X
Service Process

Note: The workflow outlined above also applies to antibody–small molecule conjugates. For antibody–protein combinations, both conjugation and fusion expression strategies are available. Antibody–antibody constructs are typically developed through fusion expression to ensure stability and expression efficiency

Service Content
Service Highlights
Advanced platforms for complex antibodies
Sanyou Bio breaks free from standardized workflows with advanced platform including toxin conjugation, fusion expression, and gene design —to address demanding requirements such as complex bispecific antibody production, ADC payload conjugation, radionuclide intermediate coupling and antibody-protein fusion expression.
Ensuring data transparency and intellectual property protection
Sanyou Bio provides clients with real-time project tracking and full workflow visibility. Our operations are dual-certified under the ISO9001 Quality Management System and ISO/IEC27001 Information Security Management System, ensuring data authenticity, security, and robust IP protection throughout the collaboration.

Overview

Rapid Antibody Production

Gram-scale Antibody Production

Antibody+X

Catalog Antibody Products

Antibody+X
Service Introduction

As antibody-based therapeutics continue to diversify, their levels of development maturity vary – while formats such as bispecific antibodies and ADCs have received market approval, others like antibody-radionuclide and antibody-nucleic acid conjugates remain in early-stage and require further research to validate their pharmaceutical feasibility and commercial potential.

To meet these evolving demands, Sanyou Bio offers its Antibody + X customized development service, supporting the R&D of complex formats including antibody-small molecule conjugates, antibody-protein fusions, multispecific antibodies, and antibody-nucleic acid complexes. This platform delivers flexible and innovative solutions for next-generation biotherapeutics.

Antibody+X
Service Process (Take ADC as an example)

Note: The workflow outlined above also applies to antibody–small molecule conjugates. For antibody–protein combinations, both conjugation and fusion expression strategies are available. Antibody–antibody constructs are typically developed through fusion expression to ensure stability and expression efficiency

Service Content
Antibody+Small molecule
Site-specific and non-site-specific conjugation
Diverse payload options: ~10 toxins (e.g., DXD, MMAE, SN38) and validated chelators (e.g., DOTA, NOTA)
Comprehensive QC: Dozens of analytical methods including SEC-HPLC, HIC, and MALS
Proven expertise: Over 500 antibody conjugation projects completed
Toxin
Nuclid
Protac
Antibody+Protein
Fusion expression + in vitro conjugation
Multiple expression systems available (eukaryotic, prokaryotic, insect cell)
Analytical assays including SDS-PAGE, SEC, MALS, ELISA, and SPR to assess purity and activity
Extensive experience in preparing nearly 100 antibody-based complexes
Enzyme
Peptides
Cytokines
Antibody + Nucleic acid
Conjugation methods: Amine-carboxyl coupling, thiol-maleimide conjugation, and click chemistry
abx.AntibodyX.antibody3.tex2
Analytical assays: SDS-PAGE, fluorescent labeling, DLS, or ELISA
siRNA
ASO
Antibody+Antibody
Fusion expression + in vitro conjugation
Over 150 bispecific and multispecific antibody formats available
Multi-step purification to remove impurities (e.g., aggregates, fragments, homodimers)
Experience in developing >2,000 multispecific antibodies
BsAb
TsAb
Service Highlights
Advanced platforms for complex antibodies
Sanyou Bio breaks free from standardized workflows with advanced platform including toxin conjugation, fusion expression, and gene design —to address demanding requirements such as complex bispecific antibody production, ADC payload conjugation, radionuclide intermediate coupling and antibody-protein fusion expression.
Ensuring data transparency and intellectual property protection
Sanyou Bio provides clients with real-time project tracking and full workflow visibility. Our operations are dual-certified under the ISO9001 Quality Management System and ISO/IEC27001 Information Security Management System, ensuring data authenticity, security, and robust IP protection throughout the collaboration.
Service Introduction

As antibody-based therapeutics continue to diversify, their levels of development maturity vary – while formats such as bispecific antibodies and ADCs have received market approval, others like antibody-radionuclide and antibody-nucleic acid conjugates remain in early-stage and require further research to validate their pharmaceutical feasibility and commercial potential.

To meet these evolving demands, Sanyou Bio offers its Antibody + X customized development service, supporting the R&D of complex formats including antibody-small molecule conjugates, antibody-protein fusions, multispecific antibodies, and antibody-nucleic acid complexes. This platform delivers flexible and innovative solutions for next-generation biotherapeutics.

Antibody+X
Service Process

Note: The workflow outlined above also applies to antibody–small molecule conjugates. For antibody–protein combinations, both conjugation and fusion expression strategies are available. Antibody–antibody constructs are typically developed through fusion expression to ensure stability and expression efficiency

Service Content
Service Highlights
Advanced platforms for complex antibodies
Sanyou Bio breaks free from standardized workflows with advanced platform including toxin conjugation, fusion expression, and gene design —to address demanding requirements such as complex bispecific antibody production, ADC payload conjugation, radionuclide intermediate coupling and antibody-protein fusion expression.
Ensuring data transparency and intellectual property protection
Sanyou Bio provides clients with real-time project tracking and full workflow visibility. Our operations are dual-certified under the ISO9001 Quality Management System and ISO/IEC27001 Information Security Management System, ensuring data authenticity, security, and robust IP protection throughout the collaboration.

Solutions

Rapid Antibody Production

Gram-scale Antibody Production

Antibody+X

Catalog Antibody Products

Applications

Project Experience

Project Case

FAQ

About Us

Promotion

Contact Us

Resources

Privacy Policy

Disclaimer

Contact us

+86 21 3368 1627

protein@sanyoubio.com

abx.sanyoubio.com.cn

T3 Building, No. 559, Zhuyuan Road,
Minhang District, Shanghai

Copyright © 2026 All Rights Reserved Sanyou Biomedical (Shanghai) Co., LTD

Solutions

Rapid Antibody Production

Gram-scale Antibody Production

Antibody+X

Catalog Antibody Products

Applications

Project Experience

Project Case

FAQ

About Us

Promotion

Contact Us

Resources

Privacy Policy

Disclaimer

Contact us

+86 21 3368 1627

abx.sanyoubio.com.cn

protein@sanyoubio.com

T3 Building, No. 559, Zhuyuan Road,<br/> Minhang District, Shanghai

Copyright © 2026 All Rights Reserved Sanyou Biomedical (Shanghai) Co., LTD