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Related Concept Videos

Intermolecular Forces03:13

Intermolecular Forces

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Atoms and molecules interact through bonds (or forces): intramolecular and intermolecular. The forces are electrostatic as they arise from interactions (attractive or repulsive) between charged species (permanent, partial, or temporary charges) and exist with varying strengths between ions, polar, nonpolar, and neutral molecules. The different types of intermolecular forces are ion–dipole, dipole–dipole, hydrogen bonds, and dispersion; among these, dipole–dipole, hydrogen...
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Intermolecular forces (IMF) are electrostatic attractions arising from charge-charge interactions between molecules. The strength of the intermolecular force is influenced by the distance of separation between molecules. The forces significantly affect the interactions in solids and liquids, where the molecules are close together. In gases, IMFs become important only under high-pressure conditions (due to the proximity of gas molecules). Intermolecular forces dictate the physical properties of...
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Noncovalent attractions are associations within and between molecules that influence the shape and structural stability of complexes. These interactions differ from covalent bonding in that they do not involve sharing of electrons.
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Many proteins form complexes to carry out their functions, making protein-protein interactions (PPIs) essential for an organism's survival. Most PPIs are stabilized by numerous weak noncovalent chemical forces. The physical shape of the interfaces determines the way two proteins interact. Many globular proteins have closely-matching shapes on their surfaces, which form a large number of weak bonds. Additionally, many PPIs occur between two helices or between a surface cleft and a...
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Intermolecular forces at the interface between NPs and biological systems.

Eder Linares Vargas1

  • 1University of Atlántico, Faculty of Education Bachelor's Degree Program in Natural Sciences, Colombia.

Biochemistry and Biophysics Reports
|October 27, 2025
PubMed
Summary
This summary is machine-generated.

Physicochemical properties of nanoparticles (NPs) dictate their interaction with biological systems at the nano-bio interface. Understanding these interactions enhances NP effectiveness in drug delivery and cancer therapies.

Keywords:
Nano-bio systemNanoparticlesPhysicochemical properties

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Area of Science:

  • Biomedical Engineering
  • Materials Science
  • Nanotechnology

Background:

  • Nanoparticle (NP) interactions with cell membranes create crucial nano-bio interfaces.
  • Outcomes of these interactions can be biocompatible or bioadverse, influencing NP fate.
  • Physicochemical properties (shape, size, surface) are key determinants of NP-biological system interactions.

Purpose of the Study:

  • To analyze how nanoparticle physicochemical properties influence interactions at the nano-bio interface.
  • To enhance the efficacy of nanoparticles in biomedical applications like drug delivery and cancer therapy.
  • To provide a compilation and analysis of existing studies on NP-biological system interactions.

Main Methods:

  • Review and analysis of existing scientific literature.
  • Exposition of nanoparticle interactions with biological systems, focusing on the nano-bio interface.
  • Discussion of how physicochemical properties influence NP behavior and outcomes.

Main Results:

  • Nanoparticle physicochemical properties significantly influence interactions at the nano-bio interface.
  • Understanding these interface dynamics is essential for predicting NP behavior.
  • Recent advances highlight the role of exosomal corona formation and smart nanostructures.

Conclusions:

  • Studying nano-bio interface relationships is vital for optimizing nanostructures.
  • Enhanced understanding leads to more efficient and effective nanotherapeutics for cancer treatment.
  • Tailoring NP properties can improve their performance in biomedical applications.