In chemistry, an ionophore (from Greek ion and -phore 'ion carrier') is a chemical species that reversibly binds ions. Many ionophores are lipid-soluble entities that transport ions across the cell membrane. Ionophores catalyze ion transport across hydrophobic membranes, such as liquid polymeric membranes (carrier-based ion selective electrodes) or lipid bilayers found in the living cells or synthetic vesicles (liposomes). Structurally, an ionophore contains a hydrophilic center and a hydrophobic portion that interacts with the membrane. Some ionophores are synthesized by microorganisms to import ions into their cells. Synthetic ion carriers have also been prepared. Ionophores selective for cations and anions have found many applications in analysis. These compounds have also shown to have various biological effects and a synergistic effect when combined with the ion they bind. (Wikipedia).
This chemistry video tutorial explains what exactly is an ion. An ion is a particle with unequal numbers of electrons and protons. Atoms have equal numbers of protons and electrons and are therefore electrically neutral. Ions with more protons than electrons are positively charged and a
From playlist New AP & General Chemistry Video Playlist
Periodic Table Trends: Ionization Energy
What an ion is. Using the periodic table to understand how difficult it is to ionize an atom. More free lessons at: http://www.khanacademy.org/video?v=ywqg9PorTAw
From playlist Chemistry
Periodic Trends: Ionization Energy Explained With Exceptions | Study Chemistry With Us
I'll go over all of these concepts: - What the ionization energy periodic trend is - What the definition of ionization energy is - How to arrange atoms in increasing order of first ionization energy - All exceptions to the ionization energy trend - How to write the chemical equation for th
From playlist Cramming For a Chemistry Final? Watch This!
Ionization Energy - Periodic Trends
Watch more videos on http://www.brightstorm.com/science/chemistry SUBSCRIBE FOR All OUR VIDEOS! https://www.youtube.com/subscription_center?add_user=brightstorm2 VISIT BRIGHTSTORM.com FOR TONS OF VIDEO TUTORIALS AND OTHER FEATURES! http://www.brightstorm.com/ LET'S CONNECT! Facebook ► h
From playlist Chemistry
Chemistry - Periodic Variations (12 of 23) Atomic Radius: Ionization Energy - Basics
Visit http://ilectureonline.com for more math and science lectures! In this video I will explain the basics of the ionic radius of ionization energy.
From playlist CHEMISTRY 12 PERIODIC VARIATION
5. Solvation, H-Bonding, and Ionophores
Freshman Organic Chemistry II (CHEM 125B) Most organic reactions occur in solution, and particularly in the case of ions, one must consider non-bonded interactions with neighboring molecules. Non-bonded interactions, including hydrogen-bonding, also determine such physical properties as
From playlist Freshman Organic Chemistry II with Michael McBride
COVID-19 Q&A #1 with Rhonda Patrick, Ph.D.
This episode features Dr. Rhonda Patrick answering some of the most popular questions related to COVID-19. Look for a second COVID-19-focused Q&A, coming soon. The questions covered in this episode include: 00:02:36 - Are children and infants susceptible to COVID-19? Are some more suscept
From playlist Just Me
Ionization Energy - Basic Introduction
This chemistry video tutorial provides a basic introduction into Ionization Energy. It discusses the periodic trends and exceptions as well as providing plenty of examples and practice problems. The first ionization energy is the energy required to remove an electron from a gaseous atom
From playlist New AP & General Chemistry Video Playlist
Total Synthesis of (-)-Curvulamine, a Bispyrrole Alkaloid with Antibacterial Properties
In this video, we explore the Maimone group's total synthesis of (-)-curvulamine, reported in 2020. Parent reference: J. Am. Chem. Soc. 2020, 142, 1206-1210. Other references (in order of appearance): For original report of this cyclization, see: Liebigs Ann. Chem. 1988, 1988, 275. For a
From playlist Total Synthesis
Chemistry 51A: Organic Chemistry. Lecture 12
UCI Chem 51A Organic Chemistry (Fall 2014) Lec 12. Organic Chemistry -- Conformations of Acyclic Alkanes View the complete course: http://ocw.uci.edu/courses/chem_51a_organic_chemistry.html Instructor: Susan King, Ph.D. License: Creative Commons BY-NC-SA Terms of Use: http://ocw.uci.edu/i
From playlist Chemistry 51A: Organic Chemistry
Ionic and Covalent Bonding - Chemistry
This chemistry video tutorial provides a basic introduction into ionic and covalent bonding. It explains the difference between polar covalent bonds and nonpolar covalent bonds. Ionic bonds exist between metals and nonmetals and are made up of ions with positive and negative charges. Co
From playlist New AP & General Chemistry Video Playlist
Bio Sci 93: DNA to Organisms. Lec. 25: Fertilization and Formation of the Blastula
UCI BioSci 93: DNA to Organisms (Fall 2012) Lec 25. DNA to Organisms -- Fertilization and Formation of the Blastula -- View the complete course: http://ocw.uci.edu/courses/biosci_93_dna_to_organisms.html Instructor: Aimee Edinger, Ph.D. License: Creative Commons BY-NC-SA Terms of Use: htt
From playlist Bio Sci 93: DNA To Organisms
In an ionic bond, two ions are held together by electrostatic force. These two atoms are trying to attain full valence shells of eight electrons. One atom has too many electrons and another has too few so one atom donates electrons and the other accepts them. The donor atom forms a cation,
From playlist Chemistry
Acids and Bases - Short Revision || CBSE Science || || Infinity Learn Class 9&10
Acids and bases are two types of substances that are fundamental to chemistry. An acid is a substance that donates protons (hydrogen ions, H+) to a solution, while a base is a substance that accepts protons or donates hydroxide ions (OH-) to a solution. There are several ways to define and
From playlist Shorts
COVID-19 Q&A #2 - Antibody-Dependent Enhancement, Cross-Immunity, Immunity Duration & More
This is a continuation of the last episode where Dr. Patrick took questions from newsletter subscribers around the on-going pandemic and tried to add value by talking about some of the recent research, among other things. Some of the topics that came up as a result of the questions submit
From playlist Just Me
Solution Chemistry and Net Ionic Equations
What are electrolytes? Yes, they're what plants crave. But they are also ionic solids dissociated in solution, such that they can conduct electrical current. Learn about solutions! Watch the whole General Chemistry playlist: http://bit.ly/ProfDaveGenChem More AP Chemistry review material
From playlist General Chemistry