Phase Change Materials (PCM) store and release thermal energy through solid-liquid transitions at near-constant temperature, exploiting latent heat capacities orders of magnitude greater than sensible heat storage. Research spans material classes — paraffins, salt hydrates, fatty acids, eutectic mixtures — alongside critical challenges in thermal conductivity enhancement, supercooling mitigation, long-term cycling stability, and containment through micro- or macroencapsulation.
يتناول التكامل على مستوى النظام هندسة المبادلات الحرارية، ومواد تغيير الطور، ومصفوفات النانو المركبة. وتتراوح التطبيقات من تنظيم الحرارة في المباني وسلسلة التبريد اللوجستية إلى تخزين الطاقة على نطاق الشبكة والتحكم الحراري في المركبات الفضائية.
تجمع هذه الصفحة أحدث المنشورات التي تمت مراجعتها من قبل النظراء وبراءات الاختراع الممنوحة، مما يعكس النطاق التقني الكامل لأبحاث PCM كما هي عليه اليوم.
هذه أحدث مجموعة مختارة لدينا من المنشورات وبراءات الاختراع العالمية باللغة الإنجليزية حول مواد تغيير الطور (PCM)، من بين العديد من المجلات العلمية على الإنترنت، مصنفة ومركزة على تخزين الحرارة الكامنة، وتخزين الطاقة الحرارية، والمحتوى الحراري، ونقطة الانصهار، والتصلب، والتنوي، والتبريد الفائق، وتعزيز التوصيل الحراري، والتغليف، والتغليف الدقيق، والتغليف الكلي، وشمع البارافين، والأحماض الدهنية، وهيدرات الأملاح، والخليط اليوتكتيكي، وحرارة الانصهار، واستقرار الدورة الحرارية، ودرجة حرارة انتقال الطور، ومشكلة ستيفان، والمنطقة شبه الصلبة، والتمدد الحجمي، وملاط PCM، وPCM المحسن نانوياً، ومصفوفة رغوة الجرافين، وتشريب رغوة المعادن، والمبادل الحراري ذو الزعانف، والخصائص الفيزيائية الحرارية، وقياس السعرات الحرارية DSC، وكثافة الطاقة الحرارية، وPCM المستقر الشكل، ومواد تغيير الطور.
Quantitative analysis of ?- and ?-oxidation pathways in Odd-numbered fatty acid metabolism during poly(3-hydroxyalkanoate) biosynthesis by <i>Cupriavidus necator</i>
Published on 2026-10-16 by Meguno Tsunekawa, Takahiko Nakaoki @NATURE
Abstract: Polymer Journal, Published online: 16 October 2026; doi:10.1038/s41428-026-01261-7The α- and β-oxidation pathways of odd-numbered fatty acids and their derivatives were investigated using experimental and theoretical approaches during poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (P3HBV) biosynthesis by Cupriavidus necator. Propionic and pentanoic acids as the carbon sources provided α- and β-oxidation rates of 0.88 and 0.37, respectively, producing P3HBV. For longer-chain fatty acids, the th[...]
Our summary: The study explores the α- and β-oxidation pathways of odd-numbered fatty acids during poly(3-hydroxybutyrate-co-3-hydroxyvalerate) biosynthesis. Experimental and theoretical analyses reveal oxidation rates for propionic and pentanoic acids, leading to the production of P3HBV. The findings demonstrate a correlation between theoretical 3HV contents and experimental results for longer-chain fatty acids.
fatty acid metabolism, oxidation pathways, Cupriavidus necator, polyhydroxyalkanoates
Coating for retaining cellular contents, encapsulation method, and application thereof
Patent published on the 2026-10-15 in US under Ref US20260317695 by NOVASTRA THERAPEUTICS INC [US] (Guo Junling [cn], He Yunxiang [cn])
Abstract: A nanocoating for retaining cellular contents, an encapsulation method, and applications thereof are disclosed. The raw materials of the nanocoating include metal ions and plant polyphenols, which form metal-polyphenol nanoparticles under acidic conditions. After binding to a cell, the metal-polyphenol nanoparticles form a nanocoating adhering to the cell surface under alkaline conditions. The nanocoating of the present invention prevents the leakage of critical intracellular substances to maint[...]
Our summary: This invention discloses a nanocoating method for retaining cellular contents using metal-polyphenol nanoparticles. The nanoparticles adhere to cell surfaces and maintain structural integrity by preventing leakage of intracellular substances. Additionally, the nanocoating protects against harmful substance leakage even after cell rupture.
nanocoating, encapsulation, metal-polyphenol nanoparticles, cellular integrity
Patent
A thermal interface material
Patent published on the 2026-10-15 in WO under Ref WO2026215662 by MEHTA MITUL [BE] (Mehta Mitul [be])
Abstract: A thermal interface material is disclosed. The thermal interface material comprises 30-60 wt% of a polymer matrix material; 20-50 wt% of a thermally conductive filler comprising diamond particles of size in the range of 1 nm-100 μm distributed in the polymer matrix material to form a gradient layer structure, the gradient layer structure comprising a top layer having the diamonds particles of size in the range of 1-1000 nm, a middle layer having the diamond particles of size in the range of 1-1[...]
Our summary: The thermal interface material consists of a polymer matrix with diamond particles as a thermally conductive filler. It features a gradient layer structure with varying particle sizes. The formulation includes crosslinking agents and phase change materials for enhanced performance.
thermal interface material, polymer matrix, thermally conductive filler, gradient layer structure
Patent
Regenerative thermal management system with multi-bay heat exchange and controlled thermal modulation
Patent published on the 2026-10-15 in WO under Ref WO2026217816 by HEALIXA IQ INC [US] (Parker Ian [us], Kaminski Kristopher [au])
Abstract: A thermal management system for controlled cooling and/or heating is disclosed. The system comprises a multi-domain heat exchange assembly including a plurality of thermal domains having at least one phase change material (PCM) domain, thermally responsive media domain, or both, a plurality of heat exchanger segments disposed within respective thermal domains, a valve selection manifold configured to selectively route a heat transfer fluid, and a controller configured to actuate the valve select[...]
Our summary: The system features a multi-domain heat exchange assembly with phase change materials and thermally responsive media. It includes a valve selection manifold for routing heat transfer fluid and a controller for managing heat exchanger segments. This allows for selective coupling of segments to optimize thermal energy distribution across domains.
thermal management, heat exchange, phase change material, thermal modulation
Patent
Method for generating control data for a device for additive manufacturing, and additive manufacturing method
Patent published on the 2026-10-15 in WO under Ref WO2026215064 by EOS GMBH ELECTRO OPTICAL SYSTEMS [DE] (Birg Markus [de], Holfelder-schwalme Peter [de], Mirzabeigi Narges [de], Novotny Tobias [de], Sonnen Fabian [de])
Abstract: The invention relates to a method for generating control data (SD) for a device for the additive manufacturing of a manufacturing product in a manufacturing method in which the manufacturing product is manufactured layer-by-layer by selectively solidifying construction material (13, 17, 19), wherein the layer-by-layer manufacture is carried out by successive solidification of layers (L) in a vertical manufacturing direction (V), wherein the construction material (13, 17) is selectively solidifie[...]
Our summary: The invention describes a method for generating control data for additive manufacturing devices. It specifies different irradiation types for energy beams to achieve varying growth direction distributions and welding depths in construction materials. The generated control data enables the intermittent use of these irradiation types across multiple layers of the manufacturing product.
additive manufacturing, control data, energy beam, crystal structure
Patent
Controlled synthesis of seeding nanocrystals for the fabrication of transparent conducting perovskite oxides on non-epitaxial substrates
Patent published on the 2026-10-15 in US under Ref US20260317952 by WISCONSIN ALUMNI RES FOUNDATION [US] (Evans Paul Gregory [us], Kannu Lakshmi Kumar Chinna [us], Marandu Maureen [us], Liu Rui [us])
Abstract: Transparent conducting oxide (TCO) films composed of transparent, electrically conducting, perovskite oxides (TCPOs) and methods of making the films are provided. The TCPOs are crystallized from their corresponding amorphous films using embedded crystalline perovskite oxide seeds as nucleation sites. The amorphous films have the same complex oxide composition as the TCPO but are in an amorphous form. The crystalline perovskite oxide seeds are themselves formed on a substrate from a thin amorphou[...]
Our summary: The study presents a method for synthesizing transparent conducting perovskite oxides using seeding nanocrystals. It describes the crystallization of amorphous films into TCPOs through embedded crystalline seeds. This approach allows for the fabrication of films without the constraints of epitaxial growth substrates.
nanocrystals, transparent conducting oxides, perovskite, nucleation
Patent
Method of vis-breaking a polyolefin
Patent published on the 2026-10-15 in US under Ref US20260317521 by SAHARA INTERNATIONAL PETROCHEMICAL CO SIPCHEM [SA] (Farooqui Mohammed Riyazuddin [sa], De Lemos Cristovao [sa], Khulaif Khalid Obaid [sa], Makki Ammar Jamal [sa], Al-qarihi Hosam S [sa], Alvi Tahir I [sa])
Abstract: [0000] A method of vis-breaking a polyolefin including: mixing an organic peroxide with an ethylene vinyl acetate (EVA) copolymer to form a first mixture; melt extruding the first mixture from a first extruder at a temperature at least 10° C. lower than the half-life time temperature of the organic peroxide and at least 10° C. higher than the melting point of the EVA copolymer to form an extruded first mixture; pelletizing the extruded first mixture to form a cross-linkable EVA composition; mi[...]
Our summary: A method involves mixing an organic peroxide with EVA copolymer and melt extruding to create a cross-linkable composition. The cross-linkable EVA is then mixed with polyolefin and extruded at high temperatures. This process allows the organic peroxide to decompose, crosslinking the EVA and vis-breaking the polyolefin simultaneously.
vis-breaking, polyolefin, organic peroxide, melt extrusion
Patent
a comparative machine learning approach for hot-arid climates toward less carbon emission
Published on 2026-09-01 by @OXFORD
Abstract: AbstractBuilding-integrated photovoltaic-thermal (BIPVT) façades can help hot-arid cities use limited envelope area for both electricity and domestic hot water production, but their assessment is often weakened by uncertain climate inputs and weak operational forecasting. To address these gaps, this study developed a simulation-based framework for a phase change material-stabilized BIPVT façade in Tabuk, Saudi Arabia. The framework combines satellite/reanalysis climate inputs, station-validate[...]
Our summary: This study presents a simulation-based framework for assessing BIPVT façades in hot-arid climates. It utilizes advanced machine learning techniques to improve climate input accuracy and operational forecasting. The results demonstrate significant improvements in electrical efficiency and reduced operational costs.
BIPVT, machine learning, energy efficiency, climate modeling
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