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Related Concept Videos

Extraction: Advanced Methods00:56

Extraction: Advanced Methods

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Metal ions can be separated from one another by complexation with organic ligands–the chelating agent– to form uncharged chelates. Here, the chelating agent must contain hydrophobic groups and behave as a weak acid, losing a proton to bind with the metal. Since most organic ligands used in this process are insoluble or undergo oxidation in the aqueous phase, the chelating agent is initially added to the organic phase and extracted into the aqueous phase. The metal-ligand complex is...
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Overview of Advanced Functional Groups02:22

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Functional groups are groups of atoms with specific chemical properties that occur within organic molecules and are sometimes denoted as “R”. Functional groups can “functionalize” a compound by enabling it to adopt different physical and chemical properties.
Types of Advanced Functional Groups
The table below summarizes some of the major functional groups in organic chemistry.
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Sample Preparation for Analysis: Advanced Techniques01:08

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Accurate analysis of complex samples often requires advanced preparation techniques to achieve reliable and reproducible results. Samples containing inorganic or organic materials can be challenging to dissolve or decompose effectively. Standard sample preparation methods include acid digestion, fusion, dry ashing, and wet digestion.
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Cardiopulmonary Resuscitation V: Advanced Airway Management Techniques01:30

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Airway management is essential in emergency and surgical medicine, ensuring ventilation and oxygenation in patients who cannot maintain their own airway. Clinicians use a range of techniques and devices to secure the airway, depending on the patient’s condition and the clinical context. Key methods include endotracheal intubation, rapid sequence intubation (RSI), supraglottic airway devices, and advanced visualization aids. In cases where these approaches fail, surgical airway...
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Gas Chromatography: Sample Injection Systems01:08

Gas Chromatography: Sample Injection Systems

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In gas chromatography, the sample is introduced as a vapor plug into the carrier gas stream for high efficiency and resolution. A microsyringe injects the sample solution into a heated sample port, vaporizing it and mixing it with the carrier gas. This process is important to ensure the sample is properly prepared for analysis. Thermally sensitive samples can be injected directly into the column and volatilized by slowly increasing the column temperature.
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Drug Accumulation During Multiple Dosing: Repetitive IV Injections01:21

Drug Accumulation During Multiple Dosing: Repetitive IV Injections

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Calculating drug dosage and accumulation in multiple-dose regimens is crucial for achieving therapeutic efficacy while avoiding toxicity. This involves determining the plasma drug concentrations over time to optimize dosing schedules. The principle of superposition is fundamental in this process, allowing for the prediction of drug concentration in plasma following multiple doses based on single-dose data.The principle of superposition asserts that the plasma concentration-time curves from...
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Related Experiment Video

Updated: Jan 26, 2026

Fragmenting Bulk Hydrogels and Processing into Granular Hydrogels for Biomedical Applications
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Fragmenting Bulk Hydrogels and Processing into Granular Hydrogels for Biomedical Applications

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Advances in injectable self-healing biomedical hydrogels.

Yujie Tu1, Nuan Chen2, Chuping Li3

  • 1Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Department of Biomedical Engineering, College of Life Science and Technology, Jinan University, Guangzhou 510632, China; MOE Joint International Research Laboratory of CNS Regeneration, Jinan University, Guangzhou 510632, China.

Acta Biomaterialia
|April 6, 2019
PubMed
Summary

Injectable self-healing hydrogels offer autonomous repair and minimally invasive implantation for treating physical defects. This review details polymer designs and biomedical applications of these advanced biomaterials.

Keywords:
Antiseptic dressingDrug deliveryHydrogelsInjectabilitySelf-healingTissue engineering

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Area of Science:

  • Biomaterials Science
  • Polymer Chemistry
  • Regenerative Medicine

Background:

  • Implantable biomaterials are crucial for treating physical defects and traumas.
  • Hydrogels are promising biomaterials due to tunable structures and rheological properties.
  • Mechanical failures limit traditional hydrogel applications, necessitating advanced materials.

Purpose of the Study:

  • To review the progress of injectable self-healing hydrogels.
  • To explore polymer designs and mechanisms of self-healing hydrogels.
  • To discuss practical biomedical applications and recent advancements.

Main Methods:

  • Review of fundamental polymer designs for self-healing hydrogels.
  • Analysis of self-healing mechanisms and performance.
  • Evaluation of hydrogel injectability and biomedical applications.

Main Results:

  • Injectable self-healing hydrogels demonstrate autonomous recovery capabilities.
  • Advances in polymer design have enhanced mechanical properties and healing efficiency.
  • These hydrogels show significant potential in various biomedical applications.

Conclusions:

  • Injectable self-healing hydrogels represent a significant advancement in smart biomaterials.
  • Continued research in polymer design and application will further enhance their therapeutic potential.
  • These materials offer promising solutions for minimally invasive treatments and tissue regeneration.