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Related Concept Videos

Additives and Fillers in Concrete01:29

Additives and Fillers in Concrete

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Additives and fillers are integral to enhancing the properties of concrete. Pozzolans and blast-furnace slag are additives or admixtures due to their reactions with calcium hydroxide released during cement hydration. Fillers, which are finely ground and similar in fineness to Portland cement, improve concrete attributes such as workability density, and reduce capillary bleeding or cracking. Some fillers possess hydraulic properties or participate in benign reactions within the cement paste.
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Structure-Activity Relationships and Drug Design01:28

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Drug design is a dynamic field that involves discovering and developing new medications based on specific biological targets. This process heavily relies on structure-activity relationships (SAR) and quantitative structure-activity relationships (QSAR) to guide the design and optimization of efficient drugs.
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Retarders

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Retarders are chemical admixtures designed to extend the setting time, which is especially useful when there is a delay in sequential concrete pours to prevent cold joints and to achieve a cohesive structure. Retarders, when used in appropriate amounts, can also enhance the architectural appearance of exposed aggregate finishes.
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Antigens Involved in Adaptive Immunity01:26

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An antigen is any substance the immune system identifies as foreign and potentially harmful to the body, prompting an immune response. Antigens have two functional properties: immunogenicity and reactivity. Immunogenicity is the ability of an antigen to stimulate a specific immune response. At the same time, reactivity describes the antigen's ability to react with the cells and antibodies produced in response to it.
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Accelerators01:17

Accelerators

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Accelerators in concrete serve as admixtures to speed up the hardening process, enabling the concrete to achieve early strength faster. Although accelerators do not necessarily impact the time it takes concrete to set, they reduce this time in practice. A common accelerator is calcium chloride, which is particularly useful for hastening early strength development in cold weather or for rapid repair jobs that require quick heat generation after mixing.
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Related Experiment Video

Updated: Jun 26, 2025

Evaluating the Immune Response of a Nanoemulsion Adjuvant Vaccine Against Methicillin-Resistant Staphylococcus aureus MRSA Infection
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Exploring structural engineering approach to formulate and characterize next-generation adjuvants.

Aditi Rattan1, Takhellambam Malemnganba1, Sagar1

  • 1Department of Biochemistry, University of Delhi South Campus, Benito Juarez Road, Dhaula Kuan, New Delhi, India.

Advances in Protein Chemistry and Structural Biology
|May 18, 2024
PubMed
Summary
This summary is machine-generated.

Vaccine adjuvants, such as peptides and liposomes, are crucial for enhancing immune responses against pathogens. Research focuses on developing safe and effective adjuvants for improved vaccine formulations and clinical applications.

Keywords:
AdjuvantsPeptide mimicsPhage display techniqueTLR agonistVaccines

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Area of Science:

  • Immunology
  • Vaccinology
  • Biotechnology

Background:

  • Vaccination is vital for pathogen protection, but subunit vaccines often lack strong immune stimulation.
  • Adjuvants are needed to enhance vaccine efficacy and overcome limitations of current vaccine technologies.
  • Developing novel adjuvants requires identifying immune-activating molecules and rigorous testing.

Purpose of the Study:

  • To discuss peptide and liposome-based adjuvants, their properties, and formulation methods.
  • To highlight the importance of adjuvant characterization for clinical approval.
  • To explore advanced techniques like phage display for adjuvant discovery.

Main Methods:

  • Review of adjuvant properties, including liposomal parameters (charge, size, modification) and peptide self-assembly.
  • Discussion of formulation strategies for peptide and liposome adjuvants.
  • Overview of adjuvant characterization assays: cytotoxicity, T-lymphocyte proliferation, dendritic cell maturation, cytokine/antibody production, TLR signaling, and half-life determination.

Main Results:

  • Peptide adjuvants offer self-assembly and hybrid possibilities, while liposomal adjuvants function as delivery systems.
  • Phage display enables screening for peptide mimics of non-peptide pathogens, expanding adjuvant potential.
  • Comprehensive characterization methods are essential for assessing adjuvant safety and efficacy.

Conclusions:

  • Peptide and liposome-based adjuvants show significant promise for improving vaccine effectiveness.
  • Advanced formulation and characterization techniques are key to developing clinically viable adjuvants.
  • Continued research into novel adjuvant platforms is critical for future vaccine development.