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Radioembolization for neuroendocrine liver metastases is safe and effective prior to major hepatic resection

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Hepatobiliary Surgery and Nutrition 2020年第3期9卷 312-321页

作者： florian bosch Harun Ilhan Vanessa Pfahler Michael Thomas Thomas Knosel Valentin Eibl Sebastian Pratschke Peter Bartenstein Max Seidensticker Christoph J.Auernhammer Christine Spitzweg Markus O.Guba Jens Werner Martin K.Angele Department of General Visceraland Transplant SurgeryLudwig-Maximilians-University MunichMunichGermany Interdisciplinary Center of Neuroendocrine Tumors of the Gastro Entero Pancreatic System Ludwig-Maximilians-University MunichMunichGermany Department of Nuclear Medicine University HospitalLudwig-Maximilians-University MunichMunichGermany Department of Radiology Ludwig-Maximilians-University MunichMunichGermany Institute of Pathology Ludwig-Maximilians-University MunichMunichGermany Department of Internal Medicine 4 Ludwig-Maximilians-University MunichMunichGermany

Background:Radioembolization(RE)is well established in the treatment of neuroendocrine liver *** surgery is rarely performed after RE,although liver resection is the gold standard in the treatment of localized neuroendocrine liver ***,aim of the present study was to evaluate the safety and feasibility of liver resection after RE in a homogenous ***:From a prospective surgical(n=494)and nuclear medical(n=138)database patients with NELM who underwent liver resection and/or RE were *** September 2011 and December 2017 eight patients could be identified who underwent liver resection after RE(mean therapeutic activity of 1,746 Mbq).Overall and progression free survival were evaluated as well as epidemiological and perioperative *** surgical specimens were analyzed for necrosis,fibrosis,inflammation,and ***:The mean hepatic tumor load of patients,who had liver surgery after RE,was 31.4%with a mean Ki-67 proliferation index of 5.9%.The majority of these patients(7/8)received whole liver RE prior to liver resection,which did not increase morbidity and mortality compared to a surgical *** for RE were oncological(6/8)or carcinoid syndrome associated reasons(2/8).Mean overall survival was 25.1 months after RE and subsequent *** necrosis in radioembolized lesions was 29.4%without evidence of fibrosis and inflammation in hepatic ***:This is the first study analyzing the multimodal therapeutic approach of liver resection following whole liver *** treatment algorithm is safe,does not lead to an increased morbidity and is associated with a favorable oncological ***,patient selection remains a key issue.

关键词： Radioembolization(RE) neuroendocrine tumor liver surgery

On the role of surface carbonate species in determining the cycling performance of all-solid-state batteries

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Materials Futures 2022年第2期1卷 116-120页

作者： florian Strauss Seyedhosein Payandeh Aleksandr Kondrakov Torsten Brezesinski Battery and Electrochemistry Laboratory(BELLA) Institute of NanotechnologyKarlsruhe Institute of Technology(KIT)Hermann-von-Helmholtz-Platz 176344 Eggenstein-LeopoldshafenGermany BASF SE Carl-Bosch-Str.3867056 LudwigshafenGermany

This short perspective summarizes recent findings on the role of residual lithium present on the surface of layered Ni-rich oxide cathode materials in liquid-and solid-electrolyte based batteries,with emphasis placed on the carbonate *** and future research opportunities in the development of carbonate-containing protective nanocoatings for inorganic solid-state battery applications are also discussed.

关键词： electrochemical energy storage layered oxide cathode materials protective coatings surface contaminants interfacial chemistry

Tailoring the LiNbO_(3)coating of Ni-rich cathode materials for stable and high-performance all-solid-state batteries

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Nano Research Energy 2022年第3期1卷 4-10页

作者： Seyedhosein Payandeh florian Strauss Andrey Mazilkin Aleksandr Kondrakov Torsten Brezesinski Battery and Electrochemistry Laboratory Institute of NanotechnologyKarlsruhe Institute of Technology(KIT)Hermann-von-Helmholtz-Platz 176344 Eggenstein-LeopoldshafenGermany Karlsruhe Nano Micro Facility Karlsruhe Institute of Technology(KIT)Hermann-von-Helmholtz-Platz 176344 Eggenstein-LeopoldshafenGermany BASF SE Carl-Bosch-Str.3867056 LudwigshafenGermany

The research and development of advanced nanocoatings for high-capacity cathode materials is currently a hot topic in the field of solid-state batteries(SSBs).Protective surface coatings prevent direct contact between the cathode material and solid electrolyte,thereby inhibiting detrimental interfacial decomposition *** is particularly important when using lithium thiophosphate superionic solid electrolytes,as these materials exhibit a narrow electrochemical stability window,and therefore,are prone to degradation during battery *** we show that the cycling performance of LiNbO_(3)-coated Ni-rich LiNi_(x)Co_(y)Mn_(z)O_(2)cathode materials is strongly dependent on the sample history and(coating)synthesis *** demonstrate that post-treatment in a pure oxygen atmosphere at 350℃results in the formation of a surface layer with a unique microstructure,consisting of LiNbO_(3)nanoparticles distributed in a carbonate *** tested at 45℃and C/5 rate in pellet-stack SSB full cells with Li_(4)Ti_(5)O_(12)and Li_(6)PS_(5)Cl as anode material and solid electrolyte,respectively,around 80%of the initial specific discharge capacity is retained after 200 cycles(~160 mAh·g^(−1),~1.7 mAh·cm^(−2)).Our results highlight the importance of tailoring the coating chemistry to the electrode material(s)for practical SSB applications.

关键词： solid-state battery layered Ni-rich oxide cathode superionic solid electrolyte protective surface coating side reactions

The interplay between (electro)chemical and (chemo)mechanical effects in the cycling performance of thiophosphate-based solid-state batteries

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Materials Futures 2022年第1期1卷 122-134页

作者： Jun Hao Teo florian Strauss Felix Walther Yuan Ma Seyedhosein Payandeh Torsten Scherer Matteo Bianchini Jürgen Janek Torsten Brezesinski Battery and Electrochemistry Laboratory Institute of NanotechnologyKarlsruhe Institute of Technology(KIT)Hermann-von-Helmholtz-Platz 176344 Eggenstein-LeopoldshafenGermany Institute of Physical Chemistry&Center for Materials Research Justus-Liebig-University GiessenHeinrich-Buff-Ring 1735392 GiessenGermany KNMF Laboratory for Micro-and Nanostructuring Institute of NanotechnologyKarlsruhe Institute of Technology(KIT)Hermann-von-Helmholtz-Platz 176344 Eggenstein-LeopoldshafenGermany BASF SE Carl-Bosch-Str.3867056 LudwigshafenGermany

Solid-state batteries(SSBs)are a promising next step in electrochemical energy storage but are plagued by a number of *** this study,we demonstrate the recurring issue of mechanical degradation because of volume changes in layered Ni-rich oxide cathode materials in thiophosphate-based ***,we explore superionic solid electrolytes(SEs)of different crystallinity,namely glassy 1.5Li_(2)S-0.5P_(2)S_(5)-LiI and argyrodite Li_(6)PS_(5)Cl,with emphasis on how they affect the cyclability of slurry-cast cathodes with NCM622(60%Ni)or NCM851005(85%Ni).The application of a combination of ex situ and in situ analytical techniques helped to reveal the benefits of using a SE with a low Young’s *** a synergistic interplay of(electro)chemical and(chemo)mechanical effects,the glassy SE employed in this work was able to achieve robust and stable interfaces,enabling intimate contact with the cathode material while at the same time mitigating volume *** results emphasize the importance of considering chemical,electrochemical,and mechanical properties to realize long-term cycling performance in high-loading SSBs.

关键词： solid-state battery slurry casting lithium thiophosphate electrolyte Ni-rich NCM cathode degradation