biology

Isolation chip

Isolation chip is a biology topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Isolation chip rather than just read about it. In short: The Isolation chip (or ichip) is a method of culturing bacteria. Using regular methods, 99% of bacterial species found in nature are not able to be cultured as they do not grow in conditions made in a laboratory, a problem called the great plate count anomaly.

Key takeaways

Isolation chip belongs to biology; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Isolation chip to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Isolation chip from memory before moving on to harder problems.

Reference excerpt

The Isolation chip (or ichip) is a method of culturing bacteria. Using regular methods, 99% of bacterial species found in nature are not able to be cultured as they do not grow in conditions made in a laboratory, a problem called the great plate count anomaly. The ichip instead cultures bacterial species within its soil environment using tiny diffusion chambers. The soil is diluted in molten agar and nutrients such that only a single cell, on average, grows in the ichip's small compartments or wells, hence the term "isolation". The chip is then enclosed in a semipermeable plastic membrane and buried back in the dirt to allow in nutrients not available in the lab. With this culturing method, about 50 to 60 percent of bacterial species are able to survive. This is of particular relevance to drug discovery. Notably, the bacterial species Eleftheria terrae, which makes the antibiotic teixobactin that has shown promise against many drug-resistant strains like methicillin-resistant Staphylococcus aureus, was discovered using the ichip in 2015. In addition to antibiotics, it is argued that anti-cancer agents, anti-inflammatory and immunosuppressives (which have previously been discovered from bacteria) as well as potential energy sources could be discovered. The ichip was developed by the drug discovery company NovoBiotic Pharmaceuticals, founded by Kim Lewis and Slava Epstein.

References

Worked examples

Example 1 — a first encounter with Isolation chip

Start with the simplest possible case. Write down what Isolation chip claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In biology, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Isolation chip before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Isolation chip ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Isolation chip

In research: Isolation chip appears in biology research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Isolation chip in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Isolation chip is common in secondary-school and first-year university syllabi. It links to neighbouring topics Cell culture, Drug discovery, Microbial growth and nutrition, so understanding it makes those chapters shorter.
In everyday life: Look for Isolation chip outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Isolation chip in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Isolation chip means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Isolation chip out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Isolation chip in simple terms?

Why does Isolation chip matter?

Because it connects several biology ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Isolation chip?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Isolation chip.