Ulrike Kraft

Electropolymerized Aptasensor for Femtogram‐Level Cytokine Detection

Jiyao Yu, Renan Colucci, Rachel Shi, Qi Lu et autres

ABSTRACT Detecting cytokines at ultralow concentrations is important for the early diagnosis and monitoring of inflammatory and immune disorders, yet remains constrained by the sensitivity and stability of bioelectronic interfaces. Here, we present an electropolymerization strategy for preparing poly(amino‐ʟ‐tyrosine) (pALT) nanofilms as …

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Multimodal Optoelectronic Synapses for Neuromorphic Intelligence: Coupling Light, Electrical, Thermal, and Beyond

Jihyun Shin, Junhyung Cho, Wangmyung Choi, Jaehyun Hur et autres

ABSTRACT Intelligent systems operate in environments where multiple physical stimuli coexist and interact, yet most optoelectronic synaptic devices have primarily been limited to single‐modal operation. This review expands optoelectronic synapses beyond conventional optical‐electrical modulation toward a multisensory neuromorphic framework that incorporates thermal, …

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Printable Conductive Hydrogels for Electrochemical Biosensing and Soft Bioelectronic Interfaces (Adv. Sci. 39/2026)

Lukas Hein, Renan Colucci, Wei Xin, Tsvetomir Ivanov et autres

Printable Conductive Hydrogels Conductive, extrusion-printed PEG-PPy hydrogels with finely tunable stiffness, tailored to match a range of tissue mechanics. Acting as soft gate electrodes in OECTs, they enable GOx enzyme immobilization, supporting accurate and flexible glucose sensing for advanced bioelectronic applications. More …

Printable Conductive Hydrogels for Electrochemical Biosensing and Soft Bioelectronic Interfaces

Lukas Hein, Renan Colucci, Xin Wei, Tsvetomir Ivanov et autres

The development of flexible, conductive biomaterials is key to advancing next-generation biosensors and wearable health monitoring systems. However, combining printability, mechanical tunability, biocompatibility, and electronic performance within a single hydrogel remains a significant challenge. Here, we present a facile method to fabricate …

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Reversible switching through irradiation of capacitors and organic transistors employing dielectrics blended with non-ionic molecular photoswitches

Sten Gebel, Oumaima Aiboudi, Parham Derakhshanfar, Jihyun Shin et autres

Optical control of polymer transistors and capacitors is achieved by incorporating molecular switches into polymer dielectrics. The photochromic molecules induce additional functionality enabling reversible programming of the devices with light.

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Aptasensor Nanofilms for Ultrasensitive Cytokine Detection

Jiyao Yu, Renan Colucci, Rachel Shi, Qi Lu et autres

Elevated cytokine levels in physiological fluids are early indicators of inflammatory and immune-related pathologies, yet their detection at ultralow concentrations while maintaining a broad dynamic range remains a significant challenge. Here we report a biosensing platform based on electropolymerized poly(amino-L-tyrosine) (pALT) nanofilms …

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Enhanced Electrical Performance and Stretchability by Plasticizer‐Facilitated PEDOT:PSS Self‐Alignment

Carla Volkert, Mateusz Brzeziński, Pablo G. Argudo, Renan Colucci et autres

Stretchable, soft electronics have high potential for wearable healthcare applications and biointerfacing. One approach to render inherently brittle conductive polymers such as poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) stretchable are organic plasticizers. However, little is known on how they affect the morphology and in result the …

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Improving Charge Transport and Environmental Stability of Carbohydrate‐Bearing Semiconducting Polymers in Organic Field‐Effect Transistors

Madison Mooney, Lauren Pandolfi, Yunfei Wang, Chenhui Zhu et autres

Abstract Semiconducting polymers offer synthetic tunability, good mechanical properties, and biocompatibility, enabling the development of soft technologies previously inaccessible. Side‐chain engineering is a versatile approach for optimizing these semiconducting materials, but minor modifications can significantly impact material properties and device performance. Carbohydrate …

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Reversible Switching of Light‐Gated Organic Transistors Employing Dihydroazulene/Vinylheptafulvene Photo‐/Thermochromic Molecules

Sten Gebel, Oumaima Aiboudi, Vladimir Grigorescu, Zhitian Ling et autres

Abstract An innovative possibility to introduce additional functionality to organic field‐effect transistors (OFETs) is to employ photochromic molecules, which undergo reversible isomerization under applied stimuli such as irradiation with specific wavelengths. As a result, the transistors not only can be switched on/off …

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Organic Electrochemical Transistor-Based Immunosensors for SARS-CoV-2 Detection

Renan Colucci, Dimitrios A. Koutsouras, Svenja Morsbach, Paschalis Gkoupidenis et autres

High Resolution Image Download MS PowerPoint Slide Following the emergence of the worldwide severe respiratory syndrome coronavirus 2 (SARS-CoV-2) pandemic, the need for innovative strategies and methodologies to facilitate cost-effective and early stage diagnosis has become evident. To prevent the outbreak of …

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Transfer-printing of patterned PEDOT:PSS structures for bendable, stretchable and biodegradable electronics

Carla Volkert, Renan Colucci, Rüdiger Berger, Pol Besenius et autres

A novel technique to transfer-print variously treated PEDOT:PSS films onto stretchable substrates, including a patterning strategy and electrical and morphological analyses is presented to pave the way for advancements in stretchable electronics.

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Effects of Processing‐Induced Contamination on Organic Electronic Devices

Dimitrios Simatos, Ian E. Jacobs, Illia Dobryden, Małgorzata Nguyen et autres

Organic semiconductors are a family of pi-conjugated compounds used in many applications, such as displays, bioelectronics, and thermoelectrics. However, their susceptibility to processing-induced contamination is not well understood. Here, it is shown that many organic electronic devices reported so far may have …

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