偽造バイアグラ®錠剤検出ツールとしての熱および比色分析の組み合わせ
Paweł Ramos1, Sławomir Wilczyński2, Klaudia Stocerz1,3
1Department of Community Pharmacy, Faculty of Pharmaceutical Sciences in Sosnowiec, Medical University of Silesia, Jedności 8b, 41-200 Sosnowiec, Poland.
Pharmaceuticals (Basel, Switzerland)
|January 28, 2026
まとめ
偽造バイアグラ®およびダークネットシルデナフィル錠剤は、品質と真正性に大きなばらつきを示しています。熱および比色分析の組み合わせは、偽造医薬品を効果的に検出し、違法薬物購入のリスクを強調します。
科学分野:
- 医薬品分析
- 法化学
- 材料科学
背景:
- 偽造医薬品の分析は、公衆衛生と安全にとって非常に重要です。
- ダークネットは、違法薬物市場の管理において、法執行機関にとって大きな課題となっています。
- 元のバイアグラ®(クエン酸シルデナフィル)は、広く偽造されている医薬品です。
研究 の 目的:
- 元のバイアグラ®とダークネット由来のシルデナフィル錠剤を比較分析すること。
- 違法に入手したシルデナフィルの物理化学的特性と真正性を評価すること。
- 偽造医薬品検出のための熱および比色法の有効性を評価すること。
主な方法:
- 熱重量測定(TG)、示差熱重量測定(DTG)、および計算示差熱分析(c-DTA)による熱安定性と分解プロファイリング。
- 客観的な視覚比較のためのCIE L*a*b*システムを使用した比色分析。
- 元のバイアグラ®参照標準に対する比較分析。
主要な成果:
- ほとんどのダークネットサンプルは、熱プロファイルと色に大きなばらつきを示し、品質管理が不十分であることを示しています。
- 一部のサンプル(V1、V3、V4、V6、V8)のみが、元のバイアグラ®との類似性を示しました。
- サンプルV2およびV7は著しく逸脱しており、シルデナフィルの不在または化学形態の変化の可能性を示唆しています。
結論:
- 統合された熱および比色分析は、偽造医薬品の特定に効果的です。
- ダークネットサンプルの物理化学的不一致は、違法な薬物源に関連するリスクを強調しています。
- 本研究は、偽造医薬品検出のための組み合わせ分析技術の使用を検証します。
関連する概念動画
Overview of Microsoft Excel as a Data Analysis Tool
1.5K
Microsoft Excel is a cornerstone tool for data analysis and statistical operations, offering a wide array of functionalities to manage, analyze, and visualize data efficiently. Recognized for its versatility, Excel facilitates the performance of basic to complex statistical operations, serving as an indispensable asset for analysts, researchers, and students alike. Excel's significance in data analysis emanates from its spreadsheet environment, where data can be organized in rows and...
1.5K
Thermal expansion and Thermal stress: Problem Solving
2.2K
San Francisco's Golden Gate Bridge is exposed to temperatures ranging from -15 °C to 40 °C. At its coldest, the main span of the bridge is 1275 m long. Assuming that the bridge is made entirely of steel, what is the change in its length between these temperatures?
To solve the problem, first, identify the known and unknown quantities. The initial length (L) of the bridge is 1275 m, the coefficient of linear expansion (α) for steel is 12 x 10-6/°C, and the change in temperature (ΔT) is 55...
To solve the problem, first, identify the known and unknown quantities. The initial length (L) of the bridge is 1275 m, the coefficient of linear expansion (α) for steel is 12 x 10-6/°C, and the change in temperature (ΔT) is 55...
2.2K
Thermal Strain
2.8K
Thermal strain is a concept that arises when we consider how temperature changes affect structures. Unlike the conventional assumption that structures remain constant under load, real-world scenarios often involve temperature fluctuations that can significantly impact these structures. Consider a homogeneous rod with a uniform cross-section resting freely on a flat horizontal surface. If the rod's temperature increases, the rod elongates. This elongation is proportional to the temperature...
2.8K
Thermal Expansion
5.6K
The expansion of alcohol in a thermometer is one of many commonly encountered examples of thermal expansion, which is the change in size or volume of a given system as its temperature changes. The most visible example is the expansion of hot air. When air is heated, it expands and becomes less dense than the surrounding air, which then exerts an upward force on the hot air to, for example, make steam and smoke rise, and hot air balloons float. The same behavior happens in all liquids and gases,...
5.6K
Thermal Stress
3.3K
If the temperature of an object is changed while it is prevented from expanding or contracting, the object is subjected to stress. The stress is compressive if the object expands in the absence of constraint and tensile if it contracts. This stress resulting from temperature change is known as thermal stress. It can be quite large and can cause damage. To avoid this stress, engineers may design components so they can expand and contract freely. For instance, on highways, gaps are deliberately...
3.3K
Temperature and Thermal Equilibrium
9.4K
Heat and temperature are essential concepts for everyone every day. The study of heat and temperature is part of an area of physics known as thermodynamics. It is not always easy to distinguish heat and temperature.
The concept of temperature has evolved from the common concepts of hot and cold. The scientific definition of temperature explains more than just our sense of hot and cold. Temperature is operationally defined as the quantity measured with a thermometer. Furthermore, temperature is...
The concept of temperature has evolved from the common concepts of hot and cold. The scientific definition of temperature explains more than just our sense of hot and cold. Temperature is operationally defined as the quantity measured with a thermometer. Furthermore, temperature is...
9.4K


