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Items from 1 to 20 out of 42,091 results

article

Stable Universal 1‐ and 2‐Input Single‐Molecule Logic Gates (Adv. Mater. 26/2022)

Ran Liu, Yingmei Han, Feng Sun, Gyan Khatri, more

Advanced Materials > 34 > 26 > n/a - n/a

Single‐Molecule Devices In article number 2202135, Zong‐Liang Li, Christian A. Nijhuis, Enrique Del Barco, and co‐workers report a single‐electron logic calculator formed by a gated Au/S‐(CH₂)₃‐Fc‐(CH₂)₉‐S/Au transistor. The unique adjacent conductive molecular orbitals in the Fc moiety are controlled by the orthogonal bias and gate voltages, resulting in the implementation of all universal logic...

article

Stable Universal 1‐ and 2‐Input Single‐Molecule Logic Gates

Ran Liu, Yingmei Han, Feng Sun, Gyan Khatri, more

Advanced Materials > 34 > 26 > n/a - n/a

Controllable single‐molecule logic operations will enable development of reliable ultra‐minimalistic circuit elements for high‐density computing but require stable currents from multiple orthogonal inputs in molecular junctions. Utilizing the two unique adjacent conductive molecular orbitals (MOs) of gated Au/S‐(CH₂)₃‐Fc‐(CH₂)₉‐S/Au (Fc = ferrocene) single‐electron transistors (≈2 nm), a stable single‐electron...

article

Stretchable Thin Film Mechanical‐Strain‐Gated Switches and Logic Gate Functions Based on a Soft Tunneling Barrier (Adv. Mater. 41/2021)

Soosang Chae, Won Jin Choi, Ivan Fotev, Eva Bittrich, more

Advanced Materials > 33 > 41 > n/a - n/a

Strain‐Gated Switching Mechanical‐strain‐gated electric switches play a key role in sensing, soft robotics, and stretchable electronics. They typically operate with an “off‐switch” function, and exhibit a decrease in conductivity upon an applied strain. In article number 2104769, Soosang Chae, Andreas Fery, and co‐workers demonstrate a thin‐film architecture that features the inverse behavior: “on‐switch”:...

article

Stretchable Thin Film Mechanical‐Strain‐Gated Switches and Logic Gate Functions Based on a Soft Tunneling Barrier

Soosang Chae, Won Jin Choi, Ivan Fotev, Eva Bittrich, more

Advanced Materials > 33 > 41 > n/a - n/a

Mechanical‐strain‐gated switches are cornerstone components of material‐embedded circuits that perform logic operations without using conventional electronics. This technology requires a single material system to exhibit three distinct functionalities: strain‐invariant conductivity and an increase or decrease of conductivity upon mechanical deformation. Herein, mechanical‐strain‐gated electric switches...

article

Nested information processing in the living world

Tilmann Wurtz

Annals of the New York Academy of Sciences > 1500 > 1 > 5 - 16

Living organisms create, copy, and make use of information, the content depending on the level of organization. In cells, a network of signal chain proteins regulates gene expression and other cell functions. Incoming information is encoded through signal reception, processed by the network, and decoded by the synthesis of new gene products and other biological functions. Signaling proteins represent...

article

Logic‐Gated Proximity Aptasensing for Cell‐Surface Real‐Time Monitoring of Apoptosis

Jiao Zheng, Qiwei Wang, Lin Shi, Pai Peng, more

Angewandte Chemie > 133 > 38 > 21026 - 21032

In nature, intact apoptotic cells release ATP as a signaling molecule to trigger prompt phagocytic clearance, even at the earliest stage of apoptosis. Inspired by this, here we introduce a straightforward strategy for real‐time monitoring ATP exocytosis and drug‐stimulated apoptosis in the cancer cell surroundings. Triplex‐boosted G‐quadruplexes (tb‐G4s) responding to cell environmental factors (H...

article

Logic‐Gated Proximity Aptasensing for Cell‐Surface Real‐Time Monitoring of Apoptosis

Jiao Zheng, Qiwei Wang, Lin Shi, Pai Peng, more

Angewandte Chemie International Edition > 60 > 38 > 20858 - 20864

article

The art of molecular computing: Whence and whither

Sahana Gangadharan, Karthik Raman

BioEssays > 43 > 8 > n/a - n/a

An astonishingly diverse biomolecular circuitry orchestrates the functioning machinery underlying every living cell. These biomolecules and their circuits have been engineered not only for various industrial applications but also to perform other atypical functions that they were not evolved for—including computation. Various kinds of computational challenges, such as solving NP‐complete problems...

article

Engineering a Second‐Order DNA Logic‐Gated Nanorobot to Sense and Release on Live Cell Membranes for Multiplexed Diagnosis and Synergistic Therapy

Dan Wang, Shenhuan Li, Zilong Zhao, Xiaobing Zhang, more

Angewandte Chemie > 133 > 29 > 15950 - 15954

Tumor biomarker‐based theranostics have achieved broad interest and success in recent years. However, single biomarker‐based recognition can cause false‐positive feedback, including the on‐target off‐tumor phenomenon, in the absence of tumor‐specific antigen. Multibiomarker‐based recognition molecules often elicit nonspecific and undesired internalization when they bind to “bystander” cells. We report...

article

Engineering a Second‐Order DNA Logic‐Gated Nanorobot to Sense and Release on Live Cell Membranes for Multiplexed Diagnosis and Synergistic Therapy

Dan Wang, Shenhuan Li, Zilong Zhao, Xiaobing Zhang, more

Angewandte Chemie International Edition > 60 > 29 > 15816 - 15820

article

A Novel Design of All Optical Logical AND Gate Based on 2‐D Photonic Crystal

Anil Kumar Shukla, Girijesh Narayan Pandey

Macromolecular Symposia > 397 > 1 > n/a - n/a

All‐optical logic AND gate is realized based on two dimensional photonic crystal composed of Si rods in air. The structure proposed is designed with T‐junction using line defect and point defect in the crystal. Plane‐wave expansion and finite difference time domain methods are used to simulate and analyze the performance of the proposed AND gate. The size of the logic gate is only about 18 µm x 18 µm...

article

A Covalent Organic Framework Film for Three‐State Near‐Infrared Electrochromism and a Molecular Logic Gate

Qing Hao, Zhi‐Juan Li, Bin Bai, Xing Zhang, more

Angewandte Chemie > 133 > 22 > 12606 - 12611

A Kagome structure covalent organic framework (COF) film with three‐state NIR electrochromic properties was designed and synthesized. The COF_TPDA‐PDA film is composed of hexagonal nanosheets with high crystallinity and has three reversible color states at different applied potentials. It has high absorption spectra changes in the NIR region, ascribed to the strong intervalence charge transfer (IVCT)...

article

A Covalent Organic Framework Film for Three‐State Near‐Infrared Electrochromism and a Molecular Logic Gate

Qing Hao, Zhi‐Juan Li, Bin Bai, Xing Zhang, more

Angewandte Chemie International Edition > 60 > 22 > 12498 - 12503

article

Molecular switches and dual channel detection of Cd²⁺ and Fe³⁺ ions based on a multipodand system

Prabhpreet Singh

Luminescence > 36 > 3 > 802 - 811

Multipodand conjugates were designed and synthesized and incorporated 5‐chloro‐8‐hydroxyquinoline for efficient performance and fine tuning to behave as molecular switches by the addition of metals ions, protonation, and their combination in CH₃CN and CH₃CN–H₂O. Dipodand 3 and tetrapodand 4 showed a switching ‘ON’ of fluorescence (λ_em = 435–445) with Zn²⁺ and Cd²⁺ (OR logic) and switching ‘OFF’ of...

article

Triggered Dimerization and Trimerization of DNA Tetrahedra for Multiplexed miRNA Detection and Imaging of Cancer Cells

Zhixin Zhou, Daoqing Fan, Jianbang Wang, Yang Sung Sohn, more

Small > 17 > 6 > n/a - n/a

The reversible and switchable triggered reconfiguration of tetrahedra nanostructures from monomer tetrahedra structures into dimer or trimer structures is introduced. The triggered bridging of monomer tetrahedra by K⁺‐ion‐stabilized G‐quadruplexes or T‐A•T triplexes leads to dimer or trimer tetrahedra structures that are separated by crown ether or basic pH conditions, respectively. The signal‐triggered...

article

Complex Cascade Reaction Networks via Cross β Amyloid Nanotubes

Ayan Chatterjee, Chiranjit Mahato, Dibyendu Das

Angewandte Chemie International Edition > 60 > 1 > 202 - 207

Biocatalytic reaction networks integrate complex cascade transformations via spatial localization of multiple enzymes confined within the cellular milieu. Inspired by nature's ingenuity, we demonstrate that short peptide‐based cross‐β amyloid nanotubular hybrids can promote different kinds of cascade reactions, from simple two‐step, to multistep, to complex convergent cascades. The compartmentalizing...

article

Complex Cascade Reaction Networks via Cross β Amyloid Nanotubes

Ayan Chatterjee, Chiranjit Mahato, Dibyendu Das

Angewandte Chemie > 133 > 1 > 204 - 209

article

Photosensitive Complementary Inverters Composed of n‐Channel ReS₂ and p‐Channel Single‐Walled Carbon Nanotube Field‐Effect Transistors

Jinheon Jeong, Seung Gi Seo, Seung Yeob Kim, Sung Hun Jin

physica status solidi (RRL) – Rapid Research Letters > 14 > 12 > n/a - n/a

For robustness on security and ultralow power consumption for Internet of Things (IoT) sensors, including ultraminiaturization for high chip density, 2D multilayered ReS₂ field‐effect transistors (FETs) combined with photoinsensitive single‐walled carbon nanotube (SWNT) FETs are demonstrated for application in light‐to‐frequency (LTF) conversion circuits. Herein, multilayered ReS₂ FETs with a direct...

article

24‐3: Complementary LTPO Technology, Pixel Circuits and Integrated Gate Drivers for AMOLED Displays Supporting Variable Refresh Rates

Haojun Luo, Shaowen Wang, Jiahao Kang, Yu‐Min Wang, more

SID Symposium Digest of Technical Papers > 51 > 1 > 351 - 354

A Complementary Low‐temperature Poly‐Crystalline Silicon and Oxide (LTPO) technology based on p‐type Low‐temperature Poly‐Crystalline Silicon (LTPS) and n‐type oxide Thin‐Film Transistors (TFTs) was developed and demonstrated. New pixel circuits and Gate‐on‐Array (GOA) circuits were designed and fabricated using this technology. By combining the superior driving capability of LTPS and ultra‐low leakage...

article

Nonlinearity effect on dual photonic crystal fiber coupler for generating fully optical logic gates

A. F. G. F. Filho, T. X. Cavalcante, C. C. Beserra, M. B. C. Costa, more

Microwave and Optical Technology Letters > 62 > 9 > 3002 - 3013

In this work, we present a numerical investigation of the asymmetric double nonlinear coupling of photonic crystal fibers in an on‐off switch to obtain fully optical logic gates. Ultra‐short pulses (100 fs) are propagated through the device in three distinct excitation power regimes, power below critical (P_o = 72 kW, where P_o represents the excitation power of the device), critical power (P_c = 103...

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Search results

Stable Universal 1‐ and 2‐Input Single‐Molecule Logic Gates (Adv. Mater. 26/2022)

Stable Universal 1‐ and 2‐Input Single‐Molecule Logic Gates

Stretchable Thin Film Mechanical‐Strain‐Gated Switches and Logic Gate Functions Based on a Soft Tunneling Barrier (Adv. Mater. 41/2021)

Stretchable Thin Film Mechanical‐Strain‐Gated Switches and Logic Gate Functions Based on a Soft Tunneling Barrier

Nested information processing in the living world

Logic‐Gated Proximity Aptasensing for Cell‐Surface Real‐Time Monitoring of Apoptosis

Logic‐Gated Proximity Aptasensing for Cell‐Surface Real‐Time Monitoring of Apoptosis

The art of molecular computing: Whence and whither

Engineering a Second‐Order DNA Logic‐Gated Nanorobot to Sense and Release on Live Cell Membranes for Multiplexed Diagnosis and Synergistic Therapy

Engineering a Second‐Order DNA Logic‐Gated Nanorobot to Sense and Release on Live Cell Membranes for Multiplexed Diagnosis and Synergistic Therapy

A Novel Design of All Optical Logical AND Gate Based on 2‐D Photonic Crystal

A Covalent Organic Framework Film for Three‐State Near‐Infrared Electrochromism and a Molecular Logic Gate

A Covalent Organic Framework Film for Three‐State Near‐Infrared Electrochromism and a Molecular Logic Gate

Molecular switches and dual channel detection of Cd²⁺ and Fe³⁺ ions based on a multipodand system

Triggered Dimerization and Trimerization of DNA Tetrahedra for Multiplexed miRNA Detection and Imaging of Cancer Cells

Complex Cascade Reaction Networks via Cross β Amyloid Nanotubes

Complex Cascade Reaction Networks via Cross β Amyloid Nanotubes

Photosensitive Complementary Inverters Composed of n‐Channel ReS₂ and p‐Channel Single‐Walled Carbon Nanotube Field‐Effect Transistors

24‐3: Complementary LTPO Technology, Pixel Circuits and Integrated Gate Drivers for AMOLED Displays Supporting Variable Refresh Rates

Nonlinearity effect on dual photonic crystal fiber coupler for generating fully optical logic gates

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