1. Isotope delta challenge

   • Philip J H Dunn
   • Juris Meija

   Analytical Challenge 15 September 2021 Pages: 5923 - 5924

2. Solution to the “never odd or even” challenge

   • Reinhard Meusinger

   Analytical Challenge 15 September 2021 Pages: 5925 - 5926

   

3. Advanced tandem mass spectrometry in metabolomics and lipidomics—methods and applications

   • Sven Heiles

   Review Open access 18 June 2021 Pages: 5927 - 5948

   

4. A review of biosensors for the detection of B-type natriuretic peptide as an important cardiovascular biomarker

   • Meysam Gachpazan
   • Arash Mohammadinejad
   • Majid Rezayi

   Review 16 August 2021 Pages: 5949 - 5967

   

5. Analysis of microplastics in drinking water and other clean water samples with micro-Raman and micro-infrared spectroscopy: minimum requirements and best practice guidelines

   • Darena Schymanski
   • Barbara E. Oßmann
   • Natalia P. Ivleva

   Review Open access 20 July 2021 Pages: 5969 - 5994

   

6. Pushing the detection limits: strategies towards highly sensitive optical-based protein detection

   • Nikan Momenbeitollahi
   • Teran Cloet
   • Huiyan Li

   Review 06 August 2021 Pages: 5995 - 6011

   

7. Molecularly imprinted polymers as a selective sorbent for forensic applications in biological samples—a review

   • Juliana Barreto Ferreira
   • Clebson de Jesus Macrino
   • Wanderson Romão

   Review 24 August 2021 Pages: 6013 - 6036

   

8. Recent developments in sensors for wearable device applications

   • Yuemeng Cheng
   • Kan Wang
   • Daxiang Cui

   Review 13 August 2021 Pages: 6037 - 6057

   

9. Analytical applications of biomimetic recognition elements — an update

   • Maria C. Moreno-Bondi
   • Elena Benito-Peña

   Editorial 24 July 2021 Pages: 6059 - 6061

10. Novel nucleic acid origami structures and conventional molecular beacon–based platforms: a comparison in biosensing applications

    • Noemi Bellassai
    • Roberta D’Agata
    • Giuseppe Spoto

    Review Open access 06 April 2021 Pages: 6063 - 6077

    

11. Carbon nanomaterial hybrids via laser writing for high-performance non-enzymatic electrochemical sensors: a critical review

    • Marcel Simsek
    • Nongnoot Wongkaew

    Review Open access 12 May 2021 Pages: 6079 - 6099

    

12. Molecularly imprinted polymers by epitope imprinting: a journey from molecular interactions to the available bioinformatics resources to scout for epitope templates

    • Laura Pasquardini
    • Alessandra Maria Bossi

    Review Open access 20 May 2021 Pages: 6101 - 6115

    

13. Molecularly imprinted polymers - towards electrochemical sensors and electronic tongues

    • Anna Herrera-Chacón
    • Xavier Cetó
    • Manel del Valle

    Review 30 April 2021 Pages: 6117 - 6140

    

14. Magnetic-molecularly imprinted polymers in electrochemical sensors and biosensors

    • J. Marfà
    • R.R. Pupin
    • M.I. Pividori

    Review 23 June 2021 Pages: 6141 - 6157

    

15. A 15-min non-competitive homogeneous assay for microcystin and nodularin based on time-resolved Förster resonance energy transfer (TR-FRET)

    • Sultana Akter
    • Urpo Lamminmäki

    Research Paper Open access 03 June 2021 Pages: 6159 - 6170

    

16. Ion-exchanged glass microrods as hybrid SERS/fluorescence substrates for molecular beacon-based DNA detection

    • Simone Berneschi
    • Cristiano D’Andrea
    • Paolo Matteini

    Research Paper 19 July 2021 Pages: 6171 - 6182

    

17. Protein-imprinted polymer films prepared via cavity-selective multi-step post-imprinting modifications for highly selective protein recognition

    • Hirobumi Sunayama
    • Toshifumi Takeuchi

    Research Paper 17 May 2021 Pages: 6183 - 6189

    

18. Enhancing sensitivity of QCM for dengue type 1 virus detection using graphene-based polymer composites

    • Krongkaew Navakul
    • Chak Sangma
    • Peter A. Lieberzeit

    Research Paper Open access 06 June 2021 Pages: 6191 - 6198