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Disappearing Polymorph

소재과학에서 '사라지는 다형체(disappearing polymorph)'는 원래 결정 구조가 더 안정적인 다른 다형체로 변해 원형을 재현하기 어려운 현상이다. 이는 미세한 씨앗 결정이 대량의 물질 변화를 촉발해 원래 다형체가 사실상 사라진 것처럼 보이게 한다. 제약 산업에서는 이러한 현상이 약물의 효능과 생산에 큰 영향을 미치며, 특허 분쟁과 제네릭 출시 지연 문제로 이어지기도 한다. 대표 사례로 파록세틴과 리토나비르 등이 있으며, 원형 다형체 복원은 이론적으로 가능하지만 실무적으로는 매우 어렵다.

https://en.wikipedia.org/wiki/Disappearing_polymorph

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Disappearing polymorph - Wikipedia

StructBiolCommunications Apr 21

An acylated GLP-1/GIP analogue peptide forms a uniquely porous spiral crystal structure composed of clockwise-ascending monomers in a square pattern #GLP1 #Peptides #Crystallization https://doi.org/10.1107/S2053230X26001937

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Growing Aluminium-Copper Alloy Crystals Using Hydrogen https://hackaday.com/2026/04/20/growing-aluminium-copper-alloy-crystals-using-hydrogen/
#Science #Aluminium #Crystallization #Crystals #Geode

Growing Aluminium-Copper Alloy Crystals Using Hydrogen

Having molten aluminium interact with atmospheric water forms a source of hydrogen which can be rather problematic if you’re trying to cast aluminium parts. As the molten metal cools down, th…

Hackaday

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How to Grow Large Sugar Crystals https://hackaday.com/2026/03/17/how-to-grow-large-sugar-crystals/
#Chemistryhacks #Crystal #Crystallization

How To Grow Large Sugar Crystals

Many substances display crystallization, allowing them to keep adding to a basic shape to reach pretty humongous proportions. Although we usually tend to think of pretty stones that get fashioned i…

Hackaday

Hackaday [Unofficial]Mar 18

How to Grow Large Sugar Crystals

https://fed.brid.gy/r/https://hackaday.com/2026/03/17/how-to-grow-large-sugar-crystals/

StructBiolCommunications Feb 9

What are the effects of the presence of polyethylene glycol in macromolecular crystals? #PolyethyleneGlycol #Mechanism #Crystallization https://doi.org/10.1107/S2053230X2501043X

Ezilabscientific Jan 9

Manual Rotary Evaporators EZL-RE21 offer smooth, controlled solvent evaporation for concentration, purification, and sample preparation tasks in chemistry and research labs. Their ergonomic design and easy-to-operate controls support consistent performance for academic, industrial, and analytical workflows.

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Learn More: https://www.ezilab.com/manual-rotary-evaporators/ezl-re21

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Factovate Oct 18, 2025

Crystallized honey ≠ spoilage; bespeaks purity. Attributes: low moisture (<18%), acidic pH (3.2-4.5), hydrogen peroxide. De-crystallization via warm water bath (<40°C). #FACTOVATE #Honey #FoodScience #Purity
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https://factovate.com/does-crystallized-honey-mean-its-spoiled

StructBiolCommunications Jul 14, 2025

Features of sample preparation that should be considered prior to biomolecular crystallization experiments are reviewed, as described in the SAMPREP workshop during the 73rd Annual ACA Meeting #Crystallization #XRayCrystallography #StructuralBiology https://doi.org/10.1107/S2053230X25004650